Simple_Loops_Task12

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

namespace task_33
{
	class Program
	{
		static void Main(string[] args)
		{
			int n = int.Parse(Console.ReadLine());
			int currSum = 0;
			int prevSum = 0;
			int diff = 0;
			int maxDiff = 0;

			for (int i = 0; i < n; i++)
			{
				prevSum = currSum;
				currSum = 0;
				currSum += int.Parse(Console.ReadLine());
				currSum += int.Parse(Console.ReadLine());
				if (i != 0)
				{
					diff = Math.Abs(currSum - prevSum);
					if (diff != 0 && diff > maxDiff)
					{
						maxDiff = diff;
					}
				}
			}
			if (prevSum == currSum || n == 1)
			{
				Console.WriteLine("Yes, value={0}", currSum);
			}
			else
			{
				Console.WriteLine("No, maxdiff={0}", maxDiff);
			}
		}
	}
}