using System;

public class Program

{

    public static void Main()

    {

        //Pedro Jaquez 

        string name;

        int sub;

        int total = 0;

        int F1;

        int average;

        Console.WriteLine("Hello, welcome to my program, What's your name?");

        name=Console.ReadLine();

        Console.WriteLine("Nice to meet you "+name+".");

        Console.WriteLine("How many classes do you have?");

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

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

        {

            if (i==1)

            {

            Console.WriteLine("Write the grade of first class.");

            F1=int.Parse(Console.ReadLine());

            total+=F1;  

            if (F1 <= 69)

            {

            Console.WriteLine("Sorry you failed.");

            }

            else

            {

            Console.WriteLine("Good you paased."); 

            }

            }

            else if (i==sub)

            {

            Console.WriteLine("Write the grade the last class.");

            F1=int.Parse(Console.ReadLine());

            total+=F1;

            if (F1 <= 69)

            {

            Console.WriteLine("Sorry you failed.");

            }

            else

            {

            Console.WriteLine("Good you paased."); 

            }

            }

            else

            {

            Console.WriteLine("Write the Grade of next subject.");

            F1=int.Parse(Console.ReadLine());

            total+=F1;

            if (F1 <= 69)

            {

            Console.WriteLine("Sorry you failed.");

            }

            else

            {

            Console.WriteLine("Good you paased."); 

            }

            }

        }

        average=total/sub;

        Console.WriteLine("Your average is "+average+".");

    }

}