#include <stdio.h>

#define N 7

int grid[N][N] =  {
    {1,1,1,1,1,1,1},
    {1,0,0,1,0,0,1},
    {1,0,1,1,0,0,1},
    {1,0,0,0,0,0,1},
    {1,0,1,0,0,1,1},
    {1,0,1,0,0,0,1},
    {1,1,1,1,1,1,1}
};


int main(void)
{
}