using System;

namespace MyApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int pairs = int.Parse(Console.ReadLine());
            int maxDif = int.MinValue;
            int a = 0, b = 0, c = 0,  same = 0;
            int minA = int.MaxValue , maxA = int.MinValue  ,lastA = 0;

            for (int i = 0; i < pairs; i++)
            {
                int firstNumb = int.Parse(Console.ReadLine());
                a += firstNumb;

                for (int ii = 0; ii < 1; ii++)
                {
                    int secondNumb = int.Parse(Console.ReadLine());
                    a += secondNumb;
                }
                if (i == 0) { b = a ; }
                if (b == a) { same++; }



                c = Math.Abs(lastA - a);
                lastA = a;

                if (c > maxDif && i != 0) { maxDif = c; }


                a = 0;
            }
            if (pairs == same )
            {
                Console.WriteLine($"Yes, value={b}");
            }
            else
            {
                Console.WriteLine($"No, maxdiff={maxDif}");
            }
        }

    }
}