using System;

public class Program

{

    static void Main()

        {

            int

                i = 1,

                summe = 0;

            Double count, term;

            if (double.TryParse(Console.ReadLine(), out count))

            {

                while (i <= count)

                {

                    if(Double.TryParse(Console.ReadLine(), out term)) {

                        summe += (int)term;

                        i++;

                    } else

                    {

                        Console.WriteLine("Invalid input");

                    }

                }

​

                Console.WriteLine("-----");

                Console.WriteLine(summe);

                Console.ReadKey();

            } else

            {

                Console.WriteLine("Invalid input");

                Console.ReadKey();

            }

        }

}