n=input() r=C=n%984%131%91 c=C/2+~C%2 B=[" "*C]*99 h=1 v=0 while n:l=B[r];d=cmp(l[c],"!");h,v=d*v,-d*h;B[r]=l[:c]+" #"[d]+l[c+1:];r-=v;c-=h;n-=1 for b in B: if"#"in b:print b
Note that non-ascii characters in the above source code will be escaped (such as \x9f).