using System;

namespace _03._Exact_Sum_of_Real_Numbers
{
    class Program
    {
        static void Main(string[] args)
        {
            //Write program to enter n numbers and calculate and print their exact sum (without rounding).
            int n = int.Parse(Console.ReadLine());
            decimal sum = 0;
            for (int i = 1; i <=n; i++)
            {
                decimal curent = decimal.Parse(Console.ReadLine());
                sum += curent;
            }
            Console.WriteLine(sum);
        }
    }
}