using System;

public class Program

{

    public static void Main()

    {

        int k = 17; 

        for (int i = 1; i < k + 1; i++)

        {       

            Console.WriteLine("n: " + i + ", Fat(n): " + Fat(i));

        }       

    }

    public static float Fat(int i)

    {

        if (i == 0)

            return 1;

        else 

            return i * Fat(i - 1);

    }   

}