using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        int akbar=0;

        double avg=0;   

        for(int i=1;i<=2;i++)

        {

        Console.WriteLine("Receive the first wave");

         int n1=int.Parse(Console.ReadLine());

        Console.WriteLine("Receive the second wave");

        int n2=int.Parse(Console.ReadLine());

         Console.WriteLine("Receive the third wave");

        int n3=int.Parse(Console.ReadLine());

        akbar=Math.Max(Math.Max(n1,n2),n3);

        Console.WriteLine("The highest elevation every hour is {0}",akbar);

        avg+=n1+n2+n3;  

    }

         Console.WriteLine("The average wave every day is {0}",avg/6);

​

    }

}