HalfSum

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

namespace halfSumElement
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine());
            var sum = 0;
            var maxNum = int.MinValue;

            for (var i = 0; i < n; i++)
            {
                var num = int.Parse(Console.ReadLine());
                sum += num;
                if (num > maxNum) maxNum = num;
            }

            if (sum - maxNum == maxNum)
            {
                Console.WriteLine("Yes");
                Console.WriteLine("Sum = {0}", maxNum);
            }
            else
            {
                Console.WriteLine("No");
                Console.WriteLine("Diff = {0}", Math.Abs((sum - maxNum) - maxNum));
            }
        }
    }
}