using System;

using System.Collections.Generic;                   

public class Program

{

    public static void Main()

    {

        //Enter the code for the prove yourself below this line

        DateTime dateTime = DateTime.UtcNow.Date;

    Console.WriteLine("*****************************");

    Console.WriteLine("Test score tracker " + dateTime.ToString("d"));

    Console.WriteLine("*****************************");

    Console.WriteLine();

        List<int> scoreList = new List<int>();

    scoreList.Add(100);

    scoreList.Add(80);

    scoreList.Add(60);

​

    int totalSum= 0;

    int count = 3;

    bool keepGoing = true;

        Console.WriteLine("Press 1 to ADD a test score to list");

    Console.WriteLine("Press 2 to Remove test score from list");

    Console.WriteLine("Press 3 to FINISH");

    Console.WriteLine();

    int userInput = Convert.ToInt32(Console.ReadLine());

        if(userInput == 1) {

    Console.WriteLine("Enter test score score");

    int itemName = Convert.ToInt32(Console.ReadLine());

    scoreList.Add(itemName);

                count++;

}

​

​

        if(userInput == 2) {

    Console.WriteLine("Enter test score #");

    int itemNumber = Convert.ToInt32(Console.ReadLine());

    scoreList.RemoveAt(itemNumber -1);

}

        if(userInput == 3) {

    keepGoing = false;

}

​

        while(keepGoing){

            Console.WriteLine("Press 1 to ADD a test score to list");

    Console.WriteLine("Press 2 to Remove test score from list");

    Console.WriteLine("Press 3 to FINISH");

    Console.WriteLine();

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

        if(userInput == 1) {

    Console.WriteLine("Enter test score score");

    int itemName = Convert.ToInt32(Console.ReadLine());

    scoreList.Add(itemName);

            count++;

}

​

​

        if(userInput == 2) {

    Console.WriteLine("Enter test score #");

    int itemNumber = Convert.ToInt32(Console.ReadLine());

    scoreList.RemoveAt(itemNumber -1);

}

        if(userInput == 3) {

    keepGoing = false;

}

    }

            foreach (int i in scoreList)

    {

    Console.WriteLine("score number" + totalSum/count + ". " + i);

    totalSum+= i;

​

} 

        int result = totalSum / count;

Console.WriteLine();

Console.WriteLine("Total average: " + result);

    }

}