Equal_Pairs

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

namespace Equal_Pairs
{
    class Equal_Pairs
    {
        static void Main(string[] args)
        {
            int sum = 0;
            int MaxDiff = 0;
            int Diff1 = int.MaxValue;
            int Diff2 = int.MinValue;
            int n = int.Parse(Console.ReadLine());
            for (int i = 1; i <= n; i++)
            {
                int number1 = int.Parse(Console.ReadLine());
                int number2 = int.Parse(Console.ReadLine());
                sum = number1 + number2;
                if (sum > Diff2) Diff2 = sum;
                if (sum < Diff1) Diff1 = sum;
                MaxDiff = Math.Abs(Diff2 - Diff1);
            }
            if (MaxDiff == 0) Console.WriteLine("Yes, value " + Diff1);
            else Console.WriteLine("No, maxdiff " + MaxDiff);
        }
    }
}