SumOfElements

using System;

namespace Problem_14__Sum_of_Elements
{
    class SumOfElements
    {
        public static void Main ()
        {
            string input = Console.ReadLine ();
            string[] numbers = input.Split (' ');

            long max = FindMaxInArray (numbers);
            long sum = FindSumOfArray (numbers);

            string output = CheckIfEqual (sum, max);

            Console.WriteLine (output);

        }

        public static long FindMaxInArray (string[] numbers)
        {
            long maxValue = int.MinValue;

            for (int i = 0; i < numbers.Length; i++)
            {
                int number = int.Parse (numbers [i]);
                if (number > maxValue)
                {
                    maxValue = number;
                }
            }

            return maxValue;
        }

        static long FindSumOfArray (string[] numbers)
        {
            long sum = 0;

            for (int i = 0; i < numbers.Length; i++)
            {
                sum += int.Parse (numbers [i]);
            }

            return sum;
        }

        static string CheckIfEqual (long sum, long max)
        {
            long maxDoubled = 2 * max;

            if (sum == maxDoubled)
            {
                return "Yes, sum=" + max;
            }
            else
            {
                long diff = Math.Abs (sum - maxDoubled);
                return "No, diff=" + diff;
            }
        }
    }
}