using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        float f1 = 0.1f;

        float f2 = 0.2f;

        float f3 = f1 + f2;

        Console.WriteLine("Result (float): " + f3);

        double d1 = 0.1;

        double d2 = 0.2;

        double d3 = d1 + d2;

        Console.WriteLine("Result (double): " + d3);

    }

}