#include <bits/stdc++.h>

using namespace std;

int main() {
    int a[100][100] = {0}, b[100][100] = {0}, c[100][100] = {0};
    int n, m;
    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;
    }
    return 0;
}