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

namespace _04.Equal_Pairs
{
	class Program
	{
		static void Main(string[] args)
		{
			int broika = int.Parse(Console.ReadLine());

			int sum = 0;
			int sum1 = 0;
			int sum2 = 0;
			int e = 0;
			int e1 = 0;

			int count = 1;

			for (count = 1; count <= broika; count++ )
			{
				int n1=int.Parse(Console.ReadLine());
				int n2 = int.Parse(Console.ReadLine());

				sum = sum + n1 + n2;
				sum1 = sum - (n1 + n2);
				sum2 = sum1;

				if(sum1==sum*0.5)
				{
					e1++;

				}


				e++;
				if(e>1)
				{
					sum = 0;
					sum = n1 + n2;
				}


			}
			if (e1+1==broika)
				Console.WriteLine($"Yes, value={sum}");

			else
				Console.WriteLine($"No, maxdiff={Math.Abs(sum-sum2)}");





		}
	}
}