\psset{unit=0.45cm}
%
\pspicture(-12.5,-16.5)(12.5,4.5)
% The frame indicating the recoloured point:
% The grid
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-6,-1.5)(-6,0.5)
\psline[linewidth=0.085,linecolor=gray](-5,-1.5)(-5,0.5)
\psline[linewidth=0.085,linecolor=gray](-4,-1.5)(-4,0.5)
\psline[linewidth=0.085,linecolor=gray](-3,-1.5)(-3,0.5)
\psline[linewidth=0.085,linecolor=gray](-2,-1.5)(-2,0.5)
\psline[linewidth=0.085,linecolor=gray](-1,-1.5)(-1,0.5)
\psline[linewidth=0.085,linecolor=gray](0,-1.5)(0,0.5)
\psline[linewidth=0.085,linecolor=gray](1,-1.5)(1,0.5)
\psline[linewidth=0.085,linecolor=gray](2,-1.5)(2,0.5)
\psline[linewidth=0.085,linecolor=gray](3,-1.5)(3,0.5)
\psline[linewidth=0.085,linecolor=gray](4,-1.5)(4,0.5)
\psline[linewidth=0.085,linecolor=gray](5,-1.5)(5,0.5)
\psline[linewidth=0.085,linecolor=gray](6,-1.5)(6,0.5)
% The points:
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](6,0){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](3,0){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](1,0){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](0,0){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-3,0){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-4,0){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=white](-6,0){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](6,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](3,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](1,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-3,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-4,-1){0.3}
\pscircle[linewidth=0.1,linecolor=black,fillstyle=solid,fillcolor=black](-6,-1){0.3}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-9,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-8.5,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-8,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-7.5,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-7,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](7,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](7.5,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](8,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](8.5,0){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](9,0){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-9,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-8.5,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-8,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-7.5,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-7,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](7,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](7.5,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](8,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](8.5,-1){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](9,-1){0.15}
% The coordinates:
\rput[bl]{45}(6.05,0.55){{${\scriptstyle\lambda_{i-3}-i+3}$}}
\rput[bl]{45}(3.05,0.55){{${\scriptstyle\lambda_{i-2}-i+2}$}}
\rput[bl]{45}(1.05,0.55){{${\scriptstyle\lambda_{i-1}-i+1}$}}
\rput[bl]{45}(0.05,0.55){{${\scriptstyle\lambda_{i}-i}$}}
\rput[bl]{45}(-2.95,0.55){{${\scriptstyle\lambda_{i+1}-i-1}$}}
\rput[bl]{45}(-3.95,0.55){{${\scriptstyle\lambda_{i+2}-i-2}$}}
\rput[bl]{45}(-5.95,0.55){{${\scriptstyle\lambda_{i+3}-i-3}$}}
\rput[tr]{45}(5.9,-1.55){{${\scriptstyle\sigma_{i-3}-i+3}$}}
\rput[tr]{45}(2.9,-1.55){{${\scriptstyle\sigma_{i-2}-i+2}$}}
\rput[tr]{45}(0.9,-1.55){{${\scriptstyle\sigma_{i-1}-i+1}$}}
\rput[tr]{45}(-3.1,-1.55){{${\scriptstyle\sigma_{i}-i}$}}
\rput[tr]{45}(-4.1,-1.55){{${\scriptstyle\sigma_{i+1}-i-1}$}}
\rput[tr]{45}(-6.1,-1.55){{${\scriptstyle\sigma_{i+2}-i-2}$}}
% The shapes:
% Horizontal grid lines:
\psline[linewidth=0.085,linecolor=gray](-4.5,-13)(4.5,-13)
\psline[linewidth=0.085,linecolor=gray](-4.5,-12)(4.5,-12)
\psline[linewidth=0.085,linecolor=gray](-4.5,-11)(4.5,-11)
\psline[linewidth=0.085,linecolor=gray](-4.5,-10)(4.5,-10)
\psline[linewidth=0.085,linecolor=gray](-4.5,-9)(4.5,-9)
\psline[linewidth=0.085,linecolor=gray](-4.5,-8)(4.5,-8)
\psline[linewidth=0.085,linecolor=gray](-4.5,-7)(4.5,-7)
\psline[linewidth=0.085,linecolor=gray](-4.5,-6)(4.5,-6)
% Vertical grid lines:
\psline[linewidth=0.085,linecolor=gray](-3.5,-14)(-3.5,-5)
\psline[linewidth=0.085,linecolor=gray](-2.5,-14)(-2.5,-5)
\psline[linewidth=0.085,linecolor=gray](-1.5,-14)(-1.5,-5)
\psline[linewidth=0.085,linecolor=gray](-0.5,-14)(-0.5,-5)
\psline[linewidth=0.085,linecolor=gray](0.5,-14)(0.5,-5)
\psline[linewidth=0.085,linecolor=gray](1.5,-14)(1.5,-5)
\psline[linewidth=0.085,linecolor=gray](2.5,-14)(2.5,-5)
\psline[linewidth=0.085,linecolor=gray](3.5,-14)(3.5,-5)
\psline[linewidth=0.2,linecolor=gray](3.65,-6.15)(3.65,-7.15)(1.65,-7.15)(1.65,-8.15)(0.65,-8.15)(0.65,-10.15)(-1.35,-10.15)(-1.35,-12.15)(-2.35,-12.15)(-2.35,-13.15)
\psline[linewidth=0.2,linecolor=black](3.5,-6)(3.5,-7)(1.5,-7)(1.5,-8)(0.5,-8)(0.5,-9)(-2.5,-9)(-2.5,-11)(-3.5,-11)(-3.5,-12)
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](4.15,-5.65){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](4.65,-5.15){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](5.15,-4.65){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](5.65,-4.15){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](6.15,-3.65){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-2.85,-13.65){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-3.35,-14.15){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-3.85,-14.65){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-4.35,-15.15){0.15}
\pscircle[linecolor=gray,fillstyle=solid,fillcolor=gray](-4.85,-15.65){0.15}
% The lambda-i-s:
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](4.,-5.5){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](4.5,-5){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](5.,-4.5){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](5.5,-4){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](6.,-3.5){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-4.,-12.5){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-4.5,-13){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-5.,-13.5){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-5.5,-14){0.15}
\pscircle[linecolor=black,fillstyle=solid,fillcolor=black](-6.,-14.5){0.15}
\rput[Bl](-8.5,-6.65){${\scriptstyle\lambda_{i-3}=\sigma_{i-3}}$}
\rput[Bl](-8.5,-7.65){${\scriptstyle\lambda_{i-2}=\sigma_{i-2}}$}
\rput[Bl](-8.5,-8.65){${\scriptstyle\lambda_{i-1}=\sigma_{i-1}}$}
\rput[Bl](-8.5,-9.65){${\scriptstyle\lambda_{i}=\sigma_{i}+3}$}
\rput[Bl](-8.5,-10.65){${\scriptstyle\lambda_{i+1}=\sigma_{i}+1}$}
\rput[Bl](-8.5,-11.65){${\scriptstyle\lambda_{i+2}=\sigma_{i+1}+1}$}
\rput[Bl](-8.5,-12.65){${\scriptstyle\lambda_{i+3}=\sigma_{i+2}+1}$}
% The lambda-i-s:
\rput[Bl](4.75,-6.65){${\scriptstyle\sigma_{i-3}=\lambda_{i-3}}$}
\rput[Bl](4.75,-7.65){${\scriptstyle\sigma_{i-2}=\lambda_{i-2}}$}
\rput[Bl](4.75,-8.65){${\scriptstyle\sigma_{i-1}=\lambda_{i-1}}$}
\rput[Bl](4.75,-9.65){${\scriptstyle\sigma_{i}=\lambda_{i+1}-1}$}
\rput[Bl](4.75,-10.65){${\scriptstyle\sigma_{i+1}=\lambda_{i+2}-1}$}
\rput[Bl](4.75,-11.65){${\scriptstyle\sigma_{i+2}=\lambda_{i+3}-1}$}
\psline[linewidth=0.2,linecolor=gray]{cc-cc}(-0.3,-9.8)(0.3,-9.2)
\psline[linewidth=0.2,linecolor=gray]{cc-cc}(-0.3,-9.2)(0.3,-9.8)
%
\endpspicture