using System;
namespace Factorial
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Ingresa tu numero");
int num=int.Parse(Console.ReadLine());
Console.WriteLine("-----------------------------------------------------------------------------------------------------------");
Console.WriteLine(Factorial(num));
Console.ReadKey();
double Factorial(double num){
while (num>1){
return num*=Factorial(--num);
}return num;
}
}
}
}