using System;
public class Program
{
/*
static int function1(int number)
number = Math.Abs(number);
while (number >= 10)
number /= 10;
}
return number;
*/
static int Function2(int num)
int result = 1;
for (int i = 1; i <= num; i++)
result *= i;
return result;
static void Main()
Console.WriteLine("enter a number:");
int number = int.Parse(Console.ReadLine());
Console.WriteLine("Factorial of the number is: " + Function2(number));
int number = 488;
Console.WriteLine("first number: " + function1(number));
