using System;

public class Program

{

    public static void Main()

    {

        //ximena galindo ramos

        int num, a, total;

        total = 0;

        Console.WriteLine("How many numbers would you like to add?");

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

        Console.WriteLine("Write the first number.");

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

        total += a;

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

            {

            Console.WriteLine("Write the next number.");

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

            total += a;

            }

        if (num != 1)

        {

            Console.WriteLine("Write the last number.");

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

            total += a;

        }

        Console.WriteLine("The total addition of the numbers is: " + total);

    }

}