using System;

public class Program

{

    static double Hipot (double c1, double c2)

    {

        double h = Math.Pow(c1,2) + Math.Pow(c2,2);

        double hh = Math.Sqrt(h);

        return hh;

    }

    public static void Main()

    {

        Console.WriteLine("Indique a medida do cateto 1.");

        double cat1 = Convert.ToDouble(Console.ReadLine());

        Console.WriteLine("Indique a medida do cateto 2.");

        double cat2= Convert.ToDouble(Console.ReadLine());

        Hipot (cat1, cat2);

        double hip = Hipot (cat1, cat2);

        Console.WriteLine("A hipotenusa é "+ hip);

    }

}