#include <iostream>
using namespace std;

int main()
{
	int input;
    char action;

    do
    {
		cout << "Do you want to continue? (Y/N)?" <<  endl;

		cin >> action;

		if (!cin.good())
		{
			cout << endl << "Rip" << endl;
			return 1;
		}

		if (action == 'y' || action == 'Y')
		{

		}

		if (input == -999)
		{
			cout << endl << "Exiting" << endl;
			return 0;
		} else
		{
		    int result = 1;

            for (int i = 0; i < input; i++)
                result *= i + 1;

			cout << "The factorial of " << input << " is: " << result << endl;
		}
    } while (input != -999);

	return 0;
}