//
//

#include <iostream>

using namespace std;

int main ()
{
    int x[][4] ={ {1,2,3},{5,6,7} };

    // out: r2c3,r1c4?
    cout << "x[1][2]:" << x[1][2] << ", x[0][3] : " << x[0][3];   
    
    cout << "\n enter number for row 2 and col. 2\n";
    cin >> x[1][1];
    cout << "\n enter number for row  and col. 4\n";
    cin >> x[0][3];
    cout << "\n enter number for row 2 and col. 4\n";
    cin >> x[1][3];

    for(int i=0; i<2; i++)
     {     for(int j=0; j<4; i++)
            cout << x[i][j] << " ";
            cout << "\n";
      }
    cout << "\nDone. Bye\n\n";
    return 0;
}