Exam 1. Half_Sum

namespace _16.HalfSum
{
    using System;

    public class TheSumsOfTwoSubsequencesIsEquals
    {
        public static void Main(string[] args)
        {
            checked
            {
                int countNums = int.Parse(Console.ReadLine());

                // Read elements in First Subsequence and calculate their Sum:
                long firstSum = ReadElementsInSubsequenceAndCalculateTheirSum(countNums);

                // Read elements in Second Subsequence and calculate their Sum:
                long secondSum = ReadElementsInSubsequenceAndCalculateTheirSum(countNums);

                // Calculate difference between Sums of two Subsequences:
                long difference = Math.Abs(firstSum - secondSum);

                // Check is equals Sums of two Subsequences and print result:
                if (difference == 0)
                {
                    Console.WriteLine("Yes, sum=" + firstSum);
                }
                else
                {
                    Console.WriteLine("No, diff=" + difference);
                }
            }
        }

        private static long ReadElementsInSubsequenceAndCalculateTheirSum(int countNums)
        {
            checked
            {
                long sum = 0;
                for (int i = 0; i < countNums; i++)
                {
                    sum += int.Parse(Console.ReadLine());
                }

                return sum;
            }
        }
    }
}