//Елемент, равен на сумата на останалите

using System;

namespace gt
{
    class Program
    {
        static void Main(string[] args)
        {
            var countNum = double.Parse(Console.ReadLine());

            var greaterNum = double.Parse(Console.ReadLine());

            double sum = 0;
            sum += greaterNum;

            for (int i = 0; i < countNum - 1 ; i++)
            {
                var num = double.Parse(Console.ReadLine());
                sum = sum + num;


                if (greaterNum < num)
                {
                    greaterNum = num;
                }
            }

            sum = sum - greaterNum;
            var sumSmalNumbers = sum - greaterNum;

            if (sumSmalNumbers == 0)
            {
                Console.WriteLine("Yes");
                Console.WriteLine($"Sum = {sum}");
            }
            else
            {
                sumSmalNumbers = Math.Abs(sumSmalNumbers);

                Console.WriteLine("No");
                Console.WriteLine($"Diff = {sumSmalNumbers}");
            }
        }
    }
}