OddAndEvenPostions

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

namespace OddAndEvenSum
{
    class OddAndEvenSum
    {
        static void Main()
        {
            int numbers = int.Parse(Console.ReadLine());
            int evenSum = 0;
            int oddSum = 0;
            for (int i = 0; i < numbers; i++)
            {
                int sum = int.Parse(Console.ReadLine());
                if (i % 2 == 0)
                {
                    evenSum += sum;
                }
                else
                {
                    oddSum += sum;
                }
            }
            if(evenSum == oddSum)
            {
                Console.WriteLine("Yes");
                Console.WriteLine("Sum = {0}",evenSum);
            }
            else
            {
                int abs = Math.Abs(evenSum - oddSum);
                Console.WriteLine("No");
                Console.WriteLine("Diff = {0}",abs);
            }
        }
    }
}