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

int a [105][105], b [105][105], c [105][105]; int main() { 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]; } } for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cout << c[i][j] << " "; } cout << endl; } return 0; }