using System;

namespace MyApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int pairs = int.Parse(Console.ReadLine());
            int maxDif = int.MinValue;
            int intNum = 0, equally = 0, difference = 0,  countEqually = 0;
            int lastNum = 0;

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

                for (int ii = 0; ii < 1; ii++)
                {
                    int secondNumb = int.Parse(Console.ReadLine());
                    intNum += secondNumb;
                }
                if (i == 0) { equally = intNum ; }
                if (equally == intNum) { countEqually++; }



                difference = Math.Abs(lastNum - intNum);
                lastNum = intNum;

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


                intNum = 0;
            }
            if (pairs == countEqually )
            {
                Console.WriteLine($"Yes, value={equally}");
            }
            else
            {
                Console.WriteLine($"No, maxdiff={maxDif}");
            }
        }

    }
}