#include <cstdlib>
#include <iostream>
#include <vector>
 
using std::cin;
using std::cout;
using std::endl;
using std::vector;
 
int main()
{
    cout << "n, m:" << endl;
    int i, j, n, m;
    cin >> n >> m;
    vector< vector<int> > a(n, vector<int>(m));
    cout << "Matrix A:" << endl;
    for (i = 0; i < n; i++)
        for (j = 0; j < m; j++)
            cin >> a[i][j];
    vector< vector<int> > b(n, vector<int>(m));
    cout << "Matrix B:" << endl;
    for (i = 0; i < n; i++)
        for (j = 0; j < m; j++)
            cin >> b[i][j];
    for (i = 0; i < n; i++)
        for (j = 0; j < m; j++)
            a[i][j] += b[i][j];
    for (i = 0; i < n; i++)
    {
        for (j = 0; j < m; j++)
            cout << a[i][j] << ' ';
        cout << endl;
    }
    system("pause");
}
 

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