using System;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine(Pow(6)); //Outputs 36

        Console.WriteLine(Pow(3, 4)); //Outputs 81

    }

​

    static int Pow(int x, int y = 2)

    {

        int result = 1;

        for (int i = 0; i < y; i++)

        {

            result *= x;

        }

​

        return result;

    }

}