using System;

​

    public static class SumOfN

    {

        public static void Main()

        {

            int n = int.Parse(Console.ReadLine());

            float sum = 0.00f;

            float number = float.MinValue;

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

            {

                number = float.Parse(Console.ReadLine());

                sum += number;

            }

            Console.WriteLine(sum);

        }

    }

​