using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter One Number:");
            int m = int.Parse(Console.ReadLine());
            Program p = new Program();
            int f=p.fact(m);
            int f1 = Program.fact1(m);
              Console.WriteLine("{0},{1}",f,f1);
              Console.ReadLine();
        }

        private int fact(int n)
        {
            if (n <= 1) return 1;
            return n * fact(n - 1);
        }
        static  int fact1(int n)
        {
            if (n <= 1) return 1;
            return n * fact1(n - 1);
        }

    }
}

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