#include <iostream.h>

int main( void )
{
        char again = 'y';

        while ( again == 'y' ) {
                cout << "Please enter a number: ";
                int num;
                if ( ! ( cin >> num ) )
                        break;
                int square = num * num;
                cout << "Square of " << num
                     << " = " << square << endl;
                cout << "Another square? (y/n) ";
                cin >> again;
        }
}