fgdrhd

using System;

namespace Loops1100
{
    class Program
    {
        static void Main(string[] args)
        {
            //1.Read a  numbers n
            int n = int.Parse(Console.ReadLine());
            double leftSum = 0;
            double rightSum = 0;

            for (int i = 1; i <= n; i++)
            {
                leftSum = leftSum + int.Parse(Console.ReadLine());
            }
            if (leftSum == rightSum)
            {
                Console.WriteLine($"Yes, sum = " + leftSum);
            }
            else
            {
                double diffrence = Math.Abs(rightSum - leftSum);
                Console.WriteLine($"No, diff = " + diffrence);
            }


        }
    }
}