main(){int n,j,i;char*s;scanf("%d",&n);for(i=0;i<7;i++){for(j=0;j<n;j++){j>0?i<1||i>5?s=" ##":(s=" #"):i<1||i>5?s=" ##":5%i?s="#":(s=" #");printf(s);}printf("\n");}}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).