using System;

namespace Z10_Half_Sum_Element
{
    class MainClass
    {
        public static void Main (string[] args)
        {
            int n = int.Parse (Console.ReadLine ());

            int sum = 0;
            int max = int.MinValue;

            int[] A = new int[n];

            for (int i = 0; i < n; i++)
            {
                int k = int.Parse (Console.ReadLine ());
                A [i] = k;
                if (k > max) {
                    max = k;
                }
            }

            int count = 0;
            for (int i = 0; i < n; i++) {
                if (A [i] != max) {
                    sum += A [i];
                } else {
                    count++;
                }
                if (count > 1) {
                    count--;
                    sum += max;
                }
            }

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