for(n=readline(i=j=o='');j||i++<(j=n);)o+=/...$/(' '+((i+2*--j)%n*n+(i+j+(n>>1))%n+1))+(j?' ':'\n') print(o)
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
download
return to the top page