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

namespace Exact_sum_of_real_numbers
{
    class Program
    {
        static void Main(string[] args)
        {



           // Console.WriteLine("The lower limit of numbers is 0. Enter upper limit:");
		var n = int.Parse(Console.ReadLine());
		decimal sum=0m;
		decimal[] array = new decimal[n];
		for(int i = 0; i < n; i++)
		{
			array[i]= decimal.Parse(Console.ReadLine());
		sum += array[i];
		}

		Console.WriteLine("{0}",sum);


        }
    }
}