#include <iostream>
#include <math.h>
using namespace std;
int main (){
    int n, m, a[100][100], b[100][100], c[100][100];
    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++){
            cin >> b[i][j];
        }
    }
    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            c[i][j] = a[i][j] + b[i][j];
            cout << c[i][j] << " ";
        }
        cout << endl;
    }
}
 

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