#include <iostream>
using namespace std;
const int N = 100;
int a[N][N];
bool flag[N][N];
int n, m;
int main(){
    cin >> n >> m;
    for(int i = 0; i < n; i ++ ){
        for(int j = 0; j < m; j ++ )    cin >> a[i][j];   
    }
    for(int i = 0; i < n; i ++ )
        for(int j = 0; j < m; j ++ )
            if(j + 2 < m && a[i][j] == a[i][j + 1] && a[i][j] == a[i][j + 2])
                flag[i][j] = flag[i][j + 1] = flag[i][j + 2] = true;


    for(int j = 0; j < m; j ++ )
        for(int i = 0; i < n; i ++ )
            if(i + 2 < n && a[i][j] == a[i + 1][j] && a[i][j] == a[i + 2][j])
                flag[i][j] = flag[i + 1][j] = flag[i + 2][j] = true;

    for(int i = 0; i < n; i ++ ){
        for(int j = 0; j < m; j ++){
            if(flag[i][j])  cout << 0;
            else    cout << a[i][j];
            cout << ' ' ;
        }
        cout << endl;
    }
    return 0;
}