using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace programPractice
{
    class Program
    {
        static void Main(string[] args)
        {
            int line1 = Int32.Parse(Console.ReadLine());
            var stArray = Console.ReadLine().Split();
            int[] iArray = new int[line1];
            long sum = 0;

            for (int i = 0; i < line1; i++)
            {
                iArray[i] = Int32.Parse(stArray[i]);
                sum += iArray[i];
            }

            Console.WriteLine(sum);
        }
    }
}