using System;

public class Program

{

    public static void Main()

    {

        //Operator Carlos Adrian Cruz Cruz.

        int grade1;

        int grade2;

        int grade3;

        int grade4;

        int grade5;

        int result;

        int average = 8;

        Console.WriteLine("Introduce the first grade");

        grade1 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Introduce the second grade");

        grade2 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Introduce the third grade");

        grade3 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Introduce the fourth grade");

        grade4 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Introduce the fifth grade");

        grade5 = Convert.ToInt32(Console.ReadLine());

        result = (grade1 + grade2 + grade3 + grade4 + grade5)/5;

        if (result >= average)

        {

        Console.WriteLine("Congratulation you passed, your average is {0}",result);

        }

        else

        {

        Console.WriteLine("Sorry you failed, your average is {0}",result);

        }

    }

}