#include <iostream>
#include <string>
#include <stdlib.h>
#include <sstream>
#include <math.h>
#include <stdio.h>
using namespace std;

int main(){
    
    long r,s;
    cin>>r>>s;
    bool pole[1200][1200];
    
    for (long i=1; i<=r;i++)
    for (long i1=1; i<=s; i++)
    cin >>pole[i][i1];
    
    ////////////////begin////////////
    
 
 
 
 
 
 
 
    
}