\psset{unit=0.45cm}
%
\pspicture(-13,-30)(10,1.5)
% Black/white ending points, original configuration:
\psline[linecolor=black,linewidth=0.15](-13,-6.75)(10,-6.75)
% The partitions lambda and sigma:
\rput(-6.5,0.75){$\scriptstyle\lambda=\pas{10, 7, 7, 6, 6, 4, 4, 3, 2, 2}$}
\rput(5.5,0.75){$\scriptstyle\sigma=\pas{8, 7, 7, 5, 4, 4, 2, 1, 1}$}
% The frames indicating the ending levels:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-1.9)(9.5,-1.1)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-4.9)(9.5,-4.1)
% Ray of labels:
\rput(-10,-3){${\scriptscriptstyle -10}$}
\rput(-9,-3){${\scriptscriptstyle -9}$}
\rput(-8,-3){${\scriptscriptstyle -8}$}
\rput(-7,-3){${\scriptscriptstyle -7}$}
\rput(-6,-3){${\scriptscriptstyle -6}$}
\rput(-5,-3){${\scriptscriptstyle -5}$}
\rput(-4,-3){${\scriptscriptstyle -4}$}
\rput(-3,-3){${\scriptscriptstyle -3}$}
\rput(-2,-3){${\scriptscriptstyle -2}$}
\rput(-1,-3){${\scriptscriptstyle -1}$}
\rput(0,-3){${\scriptscriptstyle 0}$}
\rput(1,-3){${\scriptscriptstyle 1}$}
\rput(2,-3){${\scriptscriptstyle 2}$}
\rput(3,-3){${\scriptscriptstyle 3}$}
\rput(4,-3){${\scriptscriptstyle 4}$}
\rput(5,-3){${\scriptscriptstyle 5}$}
\rput(6,-3){${\scriptscriptstyle 6}$}
\rput(7,-3){${\scriptscriptstyle 7}$}
\rput(8,-3){${\scriptscriptstyle 8}$}
\rput(9,-3){${\scriptscriptstyle 9}$}
% The frame indicating the recoloured point:
\psframe[linewidth=0.125,linecolor=black,framearc=0.3](8.25,-3.5)(9.75,0.5)
% The frames indicating double-points:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-8.5,-2.5)(-4.5,-0.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-2.5,-2.5)(-1.5,-0.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](0.5,-2.5)(1.5,-0.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](3.5,-2.5)(5.5,-0.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-9.5,-5.5)(3.5,-3.5)
% The grid for the points:
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-2.7)(-10,-0.3)
\psline[linewidth=0.085,linecolor=gray](-9,-2.7)(-9,-0.3)
\psline[linewidth=0.085,linecolor=gray](-8,-2.7)(-8,-0.3)
\psline[linewidth=0.085,linecolor=gray](-7,-2.7)(-7,-0.3)
\psline[linewidth=0.085,linecolor=gray](-6,-2.7)(-6,-0.3)
\psline[linewidth=0.085,linecolor=gray](-5,-2.7)(-5,-0.3)
\psline[linewidth=0.085,linecolor=gray](-4,-2.7)(-4,-0.3)
\psline[linewidth=0.085,linecolor=gray](-3,-2.7)(-3,-0.3)
\psline[linewidth=0.085,linecolor=gray](-2,-2.7)(-2,-0.3)
\psline[linewidth=0.085,linecolor=gray](-1,-2.7)(-1,-0.3)
\psline[linewidth=0.085,linecolor=gray](0,-2.7)(0,-0.3)
\psline[linewidth=0.085,linecolor=gray](1,-2.7)(1,-0.3)
\psline[linewidth=0.085,linecolor=gray](2,-2.7)(2,-0.3)
\psline[linewidth=0.085,linecolor=gray](3,-2.7)(3,-0.3)
\psline[linewidth=0.085,linecolor=gray](4,-2.7)(4,-0.3)
\psline[linewidth=0.085,linecolor=gray](5,-2.7)(5,-0.3)
\psline[linewidth=0.085,linecolor=gray](6,-2.7)(6,-0.3)
\psline[linewidth=0.085,linecolor=gray](7,-2.7)(7,-0.3)
\psline[linewidth=0.085,linecolor=gray](8,-2.7)(8,-0.3)
\psline[linewidth=0.085,linecolor=gray](9,-2.7)(9,-0.3)
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-5.7)(-10,-3.3)
\psline[linewidth=0.085,linecolor=gray](-9,-5.7)(-9,-3.3)
\psline[linewidth=0.085,linecolor=gray](-8,-5.7)(-8,-3.3)
\psline[linewidth=0.085,linecolor=gray](-7,-5.7)(-7,-3.3)
\psline[linewidth=0.085,linecolor=gray](-6,-5.7)(-6,-3.3)
\psline[linewidth=0.085,linecolor=gray](-5,-5.7)(-5,-3.3)
\psline[linewidth=0.085,linecolor=gray](-4,-5.7)(-4,-3.3)
\psline[linewidth=0.085,linecolor=gray](-3,-5.7)(-3,-3.3)
\psline[linewidth=0.085,linecolor=gray](-2,-5.7)(-2,-3.3)
\psline[linewidth=0.085,linecolor=gray](-1,-5.7)(-1,-3.3)
\psline[linewidth=0.085,linecolor=gray](0,-5.7)(0,-3.3)
\psline[linewidth=0.085,linecolor=gray](1,-5.7)(1,-3.3)
\psline[linewidth=0.085,linecolor=gray](2,-5.7)(2,-3.3)
\psline[linewidth=0.085,linecolor=gray](3,-5.7)(3,-3.3)
\psline[linewidth=0.085,linecolor=gray](4,-5.7)(4,-3.3)
\psline[linewidth=0.085,linecolor=gray](5,-5.7)(5,-3.3)
\psline[linewidth=0.085,linecolor=gray](6,-5.7)(6,-3.3)
\psline[linewidth=0.085,linecolor=gray](7,-5.7)(7,-3.3)
\psline[linewidth=0.085,linecolor=gray](8,-5.7)(8,-3.3)
\psline[linewidth=0.085,linecolor=gray](9,-5.7)(9,-3.3)
\rput(-10.5,-1.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level N}}}
\rput(7,-4.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level 1}}}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](9,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](5,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](4,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](2,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-2,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](7,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](5,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](4,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-1,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-2,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-2){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](3,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](0,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-6,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-9,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-10,-5){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](3,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](0,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-3,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-6,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-4){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-9,-4){0.3}
% The triangles indicating the single ending points
% The up-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-1.33,-2.85)(-0.67,-2.85)(-1,-2.4)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](6.67,-2.85)(7.33,-2.85)(7,-2.4)
% The down-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-10.33,-4.15)(-9.67,-4.15)(-10,-4.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-3.33,-0.15)(-2.67,-0.15)(-3,-0.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](1.67,-0.15)(2.33,-0.15)(2,-0.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](8.67,-0.15)(9.33,-0.15)(9,-0.6)
% Black/white ending points, first recolouring:
\psline[linecolor=black,linewidth=0.15](-13,-14.75)(10,-14.75)
% The partitions lambda and sigma:
\rput(-6.5,-7.25){$\scriptstyle\indexthis{\lambda}{0}=\pas{6, 6, 5, 5, 3, 3, 2, 1, 1}$}
\rput(5.5,-7.25){$\scriptstyle\indexthis{\sigma}{0}=\pas{10, 9, 8, 8, 6, 5, 5, 3, 2, 2}$}
% The frames indicating the ending levels:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-9.9)(9.5,-9.1)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-12.9)(9.5,-12.1)
% Ray of labels:
\rput(-10,-11){${\scriptscriptstyle -10}$}
\rput(-9,-11){${\scriptscriptstyle -9}$}
\rput(-8,-11){${\scriptscriptstyle -8}$}
\rput(-7,-11){${\scriptscriptstyle -7}$}
\rput(-6,-11){${\scriptscriptstyle -6}$}
\rput(-5,-11){${\scriptscriptstyle -5}$}
\rput(-4,-11){${\scriptscriptstyle -4}$}
\rput(-3,-11){${\scriptscriptstyle -3}$}
\rput(-2,-11){${\scriptscriptstyle -2}$}
\rput(-1,-11){${\scriptscriptstyle -1}$}
\rput(0,-11){${\scriptscriptstyle 0}$}
\rput(1,-11){${\scriptscriptstyle 1}$}
\rput(2,-11){${\scriptscriptstyle 2}$}
\rput(3,-11){${\scriptscriptstyle 3}$}
\rput(4,-11){${\scriptscriptstyle 4}$}
\rput(5,-11){${\scriptscriptstyle 5}$}
\rput(6,-11){${\scriptscriptstyle 6}$}
\rput(7,-11){${\scriptscriptstyle 7}$}
\rput(8,-11){${\scriptscriptstyle 8}$}
\rput(9,-11){${\scriptscriptstyle 9}$}
% The frame indicating the recoloured point:
\psframe[linewidth=0.125,linecolor=black,framearc=0.3](-10.75,-14.5)(-9.25,-10.5)
% The frames indicating double-points:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-8.5,-10.5)(-4.5,-8.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-2.5,-10.5)(-1.5,-8.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](0.5,-10.5)(1.5,-8.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](3.5,-10.5)(5.5,-8.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-9.5,-13.5)(3.5,-11.5)
% The grid for the points:
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-10.7)(-10,-8.3)
\psline[linewidth=0.085,linecolor=gray](-9,-10.7)(-9,-8.3)
\psline[linewidth=0.085,linecolor=gray](-8,-10.7)(-8,-8.3)
\psline[linewidth=0.085,linecolor=gray](-7,-10.7)(-7,-8.3)
\psline[linewidth=0.085,linecolor=gray](-6,-10.7)(-6,-8.3)
\psline[linewidth=0.085,linecolor=gray](-5,-10.7)(-5,-8.3)
\psline[linewidth=0.085,linecolor=gray](-4,-10.7)(-4,-8.3)
\psline[linewidth=0.085,linecolor=gray](-3,-10.7)(-3,-8.3)
\psline[linewidth=0.085,linecolor=gray](-2,-10.7)(-2,-8.3)
\psline[linewidth=0.085,linecolor=gray](-1,-10.7)(-1,-8.3)
\psline[linewidth=0.085,linecolor=gray](0,-10.7)(0,-8.3)
\psline[linewidth=0.085,linecolor=gray](1,-10.7)(1,-8.3)
\psline[linewidth=0.085,linecolor=gray](2,-10.7)(2,-8.3)
\psline[linewidth=0.085,linecolor=gray](3,-10.7)(3,-8.3)
\psline[linewidth=0.085,linecolor=gray](4,-10.7)(4,-8.3)
\psline[linewidth=0.085,linecolor=gray](5,-10.7)(5,-8.3)
\psline[linewidth=0.085,linecolor=gray](6,-10.7)(6,-8.3)
\psline[linewidth=0.085,linecolor=gray](7,-10.7)(7,-8.3)
\psline[linewidth=0.085,linecolor=gray](8,-10.7)(8,-8.3)
\psline[linewidth=0.085,linecolor=gray](9,-10.7)(9,-8.3)
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-13.7)(-10,-11.3)
\psline[linewidth=0.085,linecolor=gray](-9,-13.7)(-9,-11.3)
\psline[linewidth=0.085,linecolor=gray](-8,-13.7)(-8,-11.3)
\psline[linewidth=0.085,linecolor=gray](-7,-13.7)(-7,-11.3)
\psline[linewidth=0.085,linecolor=gray](-6,-13.7)(-6,-11.3)
\psline[linewidth=0.085,linecolor=gray](-5,-13.7)(-5,-11.3)
\psline[linewidth=0.085,linecolor=gray](-4,-13.7)(-4,-11.3)
\psline[linewidth=0.085,linecolor=gray](-3,-13.7)(-3,-11.3)
\psline[linewidth=0.085,linecolor=gray](-2,-13.7)(-2,-11.3)
\psline[linewidth=0.085,linecolor=gray](-1,-13.7)(-1,-11.3)
\psline[linewidth=0.085,linecolor=gray](0,-13.7)(0,-11.3)
\psline[linewidth=0.085,linecolor=gray](1,-13.7)(1,-11.3)
\psline[linewidth=0.085,linecolor=gray](2,-13.7)(2,-11.3)
\psline[linewidth=0.085,linecolor=gray](3,-13.7)(3,-11.3)
\psline[linewidth=0.085,linecolor=gray](4,-13.7)(4,-11.3)
\psline[linewidth=0.085,linecolor=gray](5,-13.7)(5,-11.3)
\psline[linewidth=0.085,linecolor=gray](6,-13.7)(6,-11.3)
\psline[linewidth=0.085,linecolor=gray](7,-13.7)(7,-11.3)
\psline[linewidth=0.085,linecolor=gray](8,-13.7)(8,-11.3)
\psline[linewidth=0.085,linecolor=gray](9,-13.7)(9,-11.3)
\rput(-10.5,-9.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level N}}}
\rput(7,-12.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level 1}}}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](5,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](4,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](2,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-2,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-9){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](9,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](7,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](5,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](4,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-1,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-2,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-10){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](3,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](0,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-6,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-9,-13){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](3,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](0,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-3,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-6,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-9,-12){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-10,-12){0.3}
% The triangles indicating the single ending points
% The up-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-10.33,-12.85)(-9.67,-12.85)(-10,-12.4)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-1.33,-10.85)(-0.67,-10.85)(-1,-10.4)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](6.67,-10.85)(7.33,-10.85)(7,-10.4)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](8.67,-10.85)(9.33,-10.85)(9,-10.4)
% The down-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-3.33,-8.15)(-2.67,-8.15)(-3,-8.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](1.67,-8.15)(2.33,-8.15)(2,-8.6)
% Black/white ending points, second recolouring:
\psline[linecolor=black,linewidth=0.15](-13,-22.75)(10,-22.75)
% The partitions lambda and sigma:
\rput(-6.5,-15.25){$\scriptstyle\indexthis{\lambda}{1}=\pas{8, 7, 7, 6, 6, 4, 4, 3, 2, 2}$}
\rput(5.5,-15.25){$\scriptstyle\indexthis{\sigma}{1}=\pas{10, 7, 7, 5, 4, 4, 2, 1, 1}$}
% The frames indicating the ending levels:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-17.9)(9.5,-17.1)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-20.9)(9.5,-20.1)
% Ray of labels:
\rput(-10,-19){${\scriptscriptstyle -10}$}
\rput(-9,-19){${\scriptscriptstyle -9}$}
\rput(-8,-19){${\scriptscriptstyle -8}$}
\rput(-7,-19){${\scriptscriptstyle -7}$}
\rput(-6,-19){${\scriptscriptstyle -6}$}
\rput(-5,-19){${\scriptscriptstyle -5}$}
\rput(-4,-19){${\scriptscriptstyle -4}$}
\rput(-3,-19){${\scriptscriptstyle -3}$}
\rput(-2,-19){${\scriptscriptstyle -2}$}
\rput(-1,-19){${\scriptscriptstyle -1}$}
\rput(0,-19){${\scriptscriptstyle 0}$}
\rput(1,-19){${\scriptscriptstyle 1}$}
\rput(2,-19){${\scriptscriptstyle 2}$}
\rput(3,-19){${\scriptscriptstyle 3}$}
\rput(4,-19){${\scriptscriptstyle 4}$}
\rput(5,-19){${\scriptscriptstyle 5}$}
\rput(6,-19){${\scriptscriptstyle 6}$}
\rput(7,-19){${\scriptscriptstyle 7}$}
\rput(8,-19){${\scriptscriptstyle 8}$}
\rput(9,-19){${\scriptscriptstyle 9}$}
% The frame indicating the recoloured point:
\psframe[linewidth=0.125,linecolor=black,framearc=0.3](6.25,-19.5)(7.75,-15.5)
% The frames indicating double-points:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-8.5,-18.5)(-4.5,-16.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-2.5,-18.5)(-1.5,-16.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](0.5,-18.5)(1.5,-16.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](3.5,-18.5)(5.5,-16.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-9.5,-21.5)(3.5,-19.5)
% The grid for the points:
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-18.7)(-10,-16.3)
\psline[linewidth=0.085,linecolor=gray](-9,-18.7)(-9,-16.3)
\psline[linewidth=0.085,linecolor=gray](-8,-18.7)(-8,-16.3)
\psline[linewidth=0.085,linecolor=gray](-7,-18.7)(-7,-16.3)
\psline[linewidth=0.085,linecolor=gray](-6,-18.7)(-6,-16.3)
\psline[linewidth=0.085,linecolor=gray](-5,-18.7)(-5,-16.3)
\psline[linewidth=0.085,linecolor=gray](-4,-18.7)(-4,-16.3)
\psline[linewidth=0.085,linecolor=gray](-3,-18.7)(-3,-16.3)
\psline[linewidth=0.085,linecolor=gray](-2,-18.7)(-2,-16.3)
\psline[linewidth=0.085,linecolor=gray](-1,-18.7)(-1,-16.3)
\psline[linewidth=0.085,linecolor=gray](0,-18.7)(0,-16.3)
\psline[linewidth=0.085,linecolor=gray](1,-18.7)(1,-16.3)
\psline[linewidth=0.085,linecolor=gray](2,-18.7)(2,-16.3)
\psline[linewidth=0.085,linecolor=gray](3,-18.7)(3,-16.3)
\psline[linewidth=0.085,linecolor=gray](4,-18.7)(4,-16.3)
\psline[linewidth=0.085,linecolor=gray](5,-18.7)(5,-16.3)
\psline[linewidth=0.085,linecolor=gray](6,-18.7)(6,-16.3)
\psline[linewidth=0.085,linecolor=gray](7,-18.7)(7,-16.3)
\psline[linewidth=0.085,linecolor=gray](8,-18.7)(8,-16.3)
\psline[linewidth=0.085,linecolor=gray](9,-18.7)(9,-16.3)
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-21.7)(-10,-19.3)
\psline[linewidth=0.085,linecolor=gray](-9,-21.7)(-9,-19.3)
\psline[linewidth=0.085,linecolor=gray](-8,-21.7)(-8,-19.3)
\psline[linewidth=0.085,linecolor=gray](-7,-21.7)(-7,-19.3)
\psline[linewidth=0.085,linecolor=gray](-6,-21.7)(-6,-19.3)
\psline[linewidth=0.085,linecolor=gray](-5,-21.7)(-5,-19.3)
\psline[linewidth=0.085,linecolor=gray](-4,-21.7)(-4,-19.3)
\psline[linewidth=0.085,linecolor=gray](-3,-21.7)(-3,-19.3)
\psline[linewidth=0.085,linecolor=gray](-2,-21.7)(-2,-19.3)
\psline[linewidth=0.085,linecolor=gray](-1,-21.7)(-1,-19.3)
\psline[linewidth=0.085,linecolor=gray](0,-21.7)(0,-19.3)
\psline[linewidth=0.085,linecolor=gray](1,-21.7)(1,-19.3)
\psline[linewidth=0.085,linecolor=gray](2,-21.7)(2,-19.3)
\psline[linewidth=0.085,linecolor=gray](3,-21.7)(3,-19.3)
\psline[linewidth=0.085,linecolor=gray](4,-21.7)(4,-19.3)
\psline[linewidth=0.085,linecolor=gray](5,-21.7)(5,-19.3)
\psline[linewidth=0.085,linecolor=gray](6,-21.7)(6,-19.3)
\psline[linewidth=0.085,linecolor=gray](7,-21.7)(7,-19.3)
\psline[linewidth=0.085,linecolor=gray](8,-21.7)(8,-19.3)
\psline[linewidth=0.085,linecolor=gray](9,-21.7)(9,-19.3)
\rput(-10.5,-17.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level N}}}
\rput(7,-20.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level 1}}}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](7,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](5,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](4,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](2,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-2,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-17){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](9,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](5,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](4,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-1,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-2,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-18){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](3,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](0,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-6,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-9,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-10,-21){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](3,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](0,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-3,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-6,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-20){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-9,-20){0.3}
% The triangles indicating the single ending points
% The up-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-1.33,-18.85)(-0.67,-18.85)(-1,-18.4)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](8.67,-18.85)(9.33,-18.85)(9,-18.4)
% The down-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-10.33,-20.15)(-9.67,-20.15)(-10,-20.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](6.67,-16.15)(7.33,-16.15)(7,-16.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-3.33,-16.15)(-2.67,-16.15)(-3,-16.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](1.67,-16.15)(2.33,-16.15)(2,-16.6)
% Black/white ending points, third recolouring:
% The partitions lambda and sigma:
\rput(-6.5,-23.25){$\scriptstyle\indexthis{\lambda}{2}=\pas{6, 6, 5, 5, 4, 4, 4, 3, 2, 2}$}
\rput(5.5,-23.25){$\scriptstyle\indexthis{\sigma}{2}=\pas{10, 9, 8, 8, 6, 4, 2, 1, 1}$}
% The frames indicating the ending levels:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-25.9)(9.5,-25.1)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=gray](-12.5,-28.9)(9.5,-28.1)
% Ray of labels:
\rput(-10,-27){${\scriptscriptstyle -10}$}
\rput(-9,-27){${\scriptscriptstyle -9}$}
\rput(-8,-27){${\scriptscriptstyle -8}$}
\rput(-7,-27){${\scriptscriptstyle -7}$}
\rput(-6,-27){${\scriptscriptstyle -6}$}
\rput(-5,-27){${\scriptscriptstyle -5}$}
\rput(-4,-27){${\scriptscriptstyle -4}$}
\rput(-3,-27){${\scriptscriptstyle -3}$}
\rput(-2,-27){${\scriptscriptstyle -2}$}
\rput(-1,-27){${\scriptscriptstyle -1}$}
\rput(0,-27){${\scriptscriptstyle 0}$}
\rput(1,-27){${\scriptscriptstyle 1}$}
\rput(2,-27){${\scriptscriptstyle 2}$}
\rput(3,-27){${\scriptscriptstyle 3}$}
\rput(4,-27){${\scriptscriptstyle 4}$}
\rput(5,-27){${\scriptscriptstyle 5}$}
\rput(6,-27){${\scriptscriptstyle 6}$}
\rput(7,-27){${\scriptscriptstyle 7}$}
\rput(8,-27){${\scriptscriptstyle 8}$}
\rput(9,-27){${\scriptscriptstyle 9}$}
% The frame indicating the recoloured point:
\psframe[linewidth=0.125,linecolor=black,framearc=0.3](-1.75,-27.5)(-0.25,-23.5)
% The frames indicating double-points:
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-8.5,-26.5)(-4.5,-24.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-2.5,-26.5)(-1.5,-24.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](0.5,-26.5)(1.5,-24.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](3.5,-26.5)(5.5,-24.5)
\psframe[linewidth=0.01,linecolor=black,fillstyle=solid,fillcolor=lightgray,framearc=0.3](-9.5,-29.5)(3.5,-27.5)
% The grid for the points:
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-26.7)(-10,-24.3)
\psline[linewidth=0.085,linecolor=gray](-9,-26.7)(-9,-24.3)
\psline[linewidth=0.085,linecolor=gray](-8,-26.7)(-8,-24.3)
\psline[linewidth=0.085,linecolor=gray](-7,-26.7)(-7,-24.3)
\psline[linewidth=0.085,linecolor=gray](-6,-26.7)(-6,-24.3)
\psline[linewidth=0.085,linecolor=gray](-5,-26.7)(-5,-24.3)
\psline[linewidth=0.085,linecolor=gray](-4,-26.7)(-4,-24.3)
\psline[linewidth=0.085,linecolor=gray](-3,-26.7)(-3,-24.3)
\psline[linewidth=0.085,linecolor=gray](-2,-26.7)(-2,-24.3)
\psline[linewidth=0.085,linecolor=gray](-1,-26.7)(-1,-24.3)
\psline[linewidth=0.085,linecolor=gray](0,-26.7)(0,-24.3)
\psline[linewidth=0.085,linecolor=gray](1,-26.7)(1,-24.3)
\psline[linewidth=0.085,linecolor=gray](2,-26.7)(2,-24.3)
\psline[linewidth=0.085,linecolor=gray](3,-26.7)(3,-24.3)
\psline[linewidth=0.085,linecolor=gray](4,-26.7)(4,-24.3)
\psline[linewidth=0.085,linecolor=gray](5,-26.7)(5,-24.3)
\psline[linewidth=0.085,linecolor=gray](6,-26.7)(6,-24.3)
\psline[linewidth=0.085,linecolor=gray](7,-26.7)(7,-24.3)
\psline[linewidth=0.085,linecolor=gray](8,-26.7)(8,-24.3)
\psline[linewidth=0.085,linecolor=gray](9,-26.7)(9,-24.3)
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-10,-29.7)(-10,-27.3)
\psline[linewidth=0.085,linecolor=gray](-9,-29.7)(-9,-27.3)
\psline[linewidth=0.085,linecolor=gray](-8,-29.7)(-8,-27.3)
\psline[linewidth=0.085,linecolor=gray](-7,-29.7)(-7,-27.3)
\psline[linewidth=0.085,linecolor=gray](-6,-29.7)(-6,-27.3)
\psline[linewidth=0.085,linecolor=gray](-5,-29.7)(-5,-27.3)
\psline[linewidth=0.085,linecolor=gray](-4,-29.7)(-4,-27.3)
\psline[linewidth=0.085,linecolor=gray](-3,-29.7)(-3,-27.3)
\psline[linewidth=0.085,linecolor=gray](-2,-29.7)(-2,-27.3)
\psline[linewidth=0.085,linecolor=gray](-1,-29.7)(-1,-27.3)
\psline[linewidth=0.085,linecolor=gray](0,-29.7)(0,-27.3)
\psline[linewidth=0.085,linecolor=gray](1,-29.7)(1,-27.3)
\psline[linewidth=0.085,linecolor=gray](2,-29.7)(2,-27.3)
\psline[linewidth=0.085,linecolor=gray](3,-29.7)(3,-27.3)
\psline[linewidth=0.085,linecolor=gray](4,-29.7)(4,-27.3)
\psline[linewidth=0.085,linecolor=gray](5,-29.7)(5,-27.3)
\psline[linewidth=0.085,linecolor=gray](6,-29.7)(6,-27.3)
\psline[linewidth=0.085,linecolor=gray](7,-29.7)(7,-27.3)
\psline[linewidth=0.085,linecolor=gray](8,-29.7)(8,-27.3)
\psline[linewidth=0.085,linecolor=gray](9,-29.7)(9,-27.3)
\rput(-10.5,-25.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level N}}}
\rput(7,-28.5){\psframebox[fillstyle=solid,fillcolor=white,framearc=0.3]{{\tiny\bf level 1}}}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](5,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](4,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](2,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-1,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-2,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-25){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](9,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](7,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](5,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](4,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-2,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-26){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](3,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](0,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-5,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-6,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-7,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-8,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-9,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-10,-29){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](3,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](0,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-3,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-5,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-6,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-7,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-8,-28){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-9,-28){0.3}
% The triangles indicating the single ending points
% The up-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](6.67,-26.85)(7.33,-26.85)(7,-26.4)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](8.67,-26.85)(9.33,-26.85)(9,-26.4)
% The down-triangles:
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-10.33,-28.15)(-9.67,-28.15)(-10,-28.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-1.33,-24.15)(-0.67,-24.15)(-1,-24.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](-3.33,-24.15)(-2.67,-24.15)(-3,-24.6)
\pspolygon[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=lightgray](1.67,-24.15)(2.33,-24.15)(2,-24.6)
%
\endpspicture