using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Youu need add a number of times :");

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

        int i = 1;

        for(i=1; i<=number; i++)

        {

            Console.Write("Add number {0} : ",i);

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

        }

        Console.Write("The sum is : {0}"); ////////////////////////////////////////////////

        Console.Write("Doyou want continue [Y/N] :");

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

    }

}