#include <bits/stdc++.h>
using namespace std;
int main() {
    int n, m, a[110][110], b[110][110];
    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cin >> a[i][j];
        }
    }
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cin >> b[i][j];
        }
    }
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cout << a[i][j] + b[i][j] << " ";
        }
        cout << endl;
    }
    return 0;
}