1#include <iostream>
2using namespace std;
3 
4int main() {
5    int grid[2][3] = {
6        {1, 2, 3},
7        {4, 5, 6}
8    };
9    cout << grid[0][2] << endl;
10    cout << grid[1][0] << endl;
11    int sum = 0;
12    for (int i = 0; i < 2; i++) {
13        sum += grid[i][i];
14    }
15    cout << sum << endl;
16    return 0;
17}