C# - kod 56

using System;


public class Program
{
    static void Main(string[] args)
    {
        Console.Write("Podaj liczbe: ");
        int number = int.Parse(Console.ReadLine());
        int numberfirst = 1;
        for (int i = 1; i <= number; i++)
        {
            numberfirst = numberfirst * i;
        };
        Console.WriteLine("Wynik silnej wynosi: " + numberfirst);
        Console.ReadKey();
        Console.Clear();
    }


}