using System;

public class Program

{

    public static void Main()

    {

        int a;

        int b;

        int c;

        Console.WriteLine(" Hello!");

        Console.WriteLine("Give me one number, whitchever you want");

        a = int.Parse (Console.ReadLine());

        Console.WriteLine("Okay, now give me a second number please");

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

        Console.WriteLine("Finally, give me a third number");

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

        if (a == b || a == c || b == c)

        {

        Console.WriteLine("Sorry but they have to be two numbers that are the same, please start over");

        }

        else if (a > b && a > c)

        {

        Console.WriteLine( a + " is the highest number");

        }

        else if (b > a && b > c)

        {

            Console.WriteLine( b + "is the highest number");

        }

        else if (c > a && c > b)

        {

        Console.WriteLine( c + " is the highest number");

        }

    }

}