using System;

public class Program

{

    public static void Main()

    {

        int a,b,c;

        Console.WriteLine("Enter the three no.");

        a=Convert.ToInt32(Console.ReadLine());

        b=Convert.ToInt32(Console.ReadLine());

        c=Convert.ToInt32(Console.ReadLine());

        if(a>b) 

            if (a>c)

        {

            Console.WriteLine("a is Greatest");

        }

        else

        {

            Console.WriteLine("c is Greatest");

        }

        if(b>c)

        {

            Console.WriteLine("b is Greatest");

        }

        else

        {

            Console.WriteLine("c is Greatest");

        }

    }

}