Input not accepted

[Arez]

#include <iostream>
using namespace std;

#define height 3
#define width 5

int arr[height][width];
int n,m;

int main ()
{
    do {
        cout << "Enter n: ";
        cin >> n;
        cout << "Now m: ";
        cin >> m;
    for (n=0; n<height; n++)
     for (m=0; m<width; m++)
     {
         arr[n][m]=(n+1)*(m+1);
     }
     cout << arr[n][m] << "\n";
     } while (n != 2);
     return 0;
}

what's wrong??