namespace Factorial
{
using static System.Console;
class MainClass {
static void Main() {
var result = FactorialCalculator.Calc(3);
WriteLine(result);
}
}
}
namespace Factorial
{
public class FactorialCalculator
{
public static int Calc(int value)
{
if (value == 1)
return value;
return value * Calc(value - 1);
}
}
}