#include <iostream>
#include <math.h>
using namespace std;
int main (){
int n, m, a[100][100], b[100][100], c[100][100];
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;
}
}
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