using System;

public class Program

{

    public static void Main()

    {start:

     Console.WriteLine("Please enter your first value");

     double input1 = double.Parse(Console.ReadLine());

     Console.WriteLine("Please enter your second value");

     double input2 = double.Parse(Console.ReadLine());

     double output = pyth(input1, input2);

     Console.WriteLine(output);

    }

}