using System;

public class Program

{

    public static void Main()

    {

    double a,b,c;

    Console.WriteLine ("Dê o valor dos catetos:");

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

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

    a = Math.Sqrt(Math.Pow(b,2))+ Math.Sqrt(Math.Pow(c,2));

    Console.WriteLine("O valor da hipotenusa é:{0}",a);

    }

}