Odd Even Sum

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

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

            var oddSum = 0;
            var evenSum = 0;

             for (int i = 0; i < n ; i++)
                    {
                        var element = int.Parse(Console.ReadLine());
                         if (i % 2 == 0)
                                oddSum = oddSum += element;
                        else
                               evenSum = evenSum += element;
                    }

            if (oddSum == evenSum)
            {
                Console.WriteLine("Yes, sum = {0} ", oddSum);
            }
            else
            {
                Console.WriteLine("No, diff = {0}", Math.Abs(oddSum - evenSum));
            }

        }
    }
}