using System;

public class Program

{

    public static void Main()

    {

        int n = Convert.ToInt32(Console.ReadKey());

        int[] array = new int[n];

        int sum = 0;

        for(int i = 0; i < n; i++) {

            array[i] = Convert.ToInt32(Console.ReadKey());

            sum += array[i];

        }

        Console.WriteLine(sum);

    }

}