using System;

​

public class Program

{

    static int pow(int a, int b)

    {

        int answer=a, increment=a;

        for(int i=1;i<b;i++){

            for(int j=1;j<a;j++){

                answer+=increment;

            }

            increment=answer;

        }

        return answer;

    }

    public static void Main()

    {

    Console.Write(pow(5, 3));

    }

}