#include

using namespace std;

int main() {

int n, m;

cin >> n >> m;

int a[105][105], b[105][105];

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];
        
        a[i][j] += b[i][j]; 
        
    }
    
}

for (int i = 0; i < n; i++) {

    for (int j = 0; j < m; j++) {
    
        if (j > 0) cout << " ";
        
        cout << a[i][j];
        
    }
    
    cout << endl;
    
}

return 0;

}