Solusi

#include <stdio.h>

unsigned a,b,c,d;

int main (void)
{
    return(!a?printf("\x4e\x20\x3d\x20")&&scanf("\x25\x75",&b)!=EOF&&
           b>0&&(a=!a)&&main():c<b?!d?printf("\x25\x75",c+1)&&(d=!d)&&
           ++c&&main():printf("\x25\x32\x75",c%7+1)&&++c&&main():
           !printf("\xa"));
}