using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Please convert all the units to the same.");

        {

        double side1 = 0;

        double side2 = 0;

        double side3 = 0;

        Console.WriteLine();

        Console.WriteLine("Please enter the largest side of the triangle:");

        side1 = double.Parse(Console.ReadLine());

        Console.WriteLine("Please enter the second largest side of the triangle:");

        side2 = double.Parse(Console.ReadLine());

        Console.WriteLine("Please enter the smallest side of the triangle:");

        side3 = double.Parse(Console.ReadLine());

        if ((Math.Pow(side3,2) + Math.Pow(side2,2)) >= Math.Pow(side1,2))

            {

                Console.WriteLine("This is a right angle triangle");

            }

        }

    }

}