using System;

public class Program

{

    public static int Sumuj(int n, int k) {

        if(n == 0 || k == 0) return 0;

        else

            return (n % k) + Sumuj(n, k - 1);

    }

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine(1%2);

        Console.WriteLine(Sumuj(1, 2));

        int suma = 0;

        for(int i = 1; i <= 25; i++) {

            suma = suma + (25 % i);

            Console.WriteLine("i: "+ i + " reszta: " + (25 % i));

            Console.WriteLine("i: "+ i + " suma: "+suma);

        }

        Console.WriteLine(suma);

        Console.WriteLine(2%3);

        Console.WriteLine(2%4);

    }

}