#include <bits/stdc++.h>
using namespace std;

int main() {
	int a[100][100], b[100][100], c[100][100], m, n;
	cin >> m >> n;
	for (int i = 0; i < m; i++) {
		for (int j = 0; j < n; j++) {
			cin >> a[i][j];
		}
	}
	for (int i = 0; i < m; i++) {
		for (int j = 0; j < n; j++) {
			cin >> b[i][j];
		}
	}
	for (int i = 0; i < m; i++) {
		for (int j = 0; j < n; j++) {
			c[i][j] = a[i][j] + b[i][j];
			cout << c[i][j] << " ";
		}
		cout << endl;
	}
	return 0;
}