#include <bits/stdc++.h>
#define endl '\n'
using namespace std;

int n, m;
int a[110][110];
int b[110][110];

int main(){
	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];
		}
	}
	
	int cnt = 0;
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			a[i][j] += b[i][j];
			cout << a[i][j] << " ";
		}
		cout << endl;
	}
	

	return 0;
}