SumMatrixElements

namespace SumMatrixElements
{
    using System;
    using System.Linq;
    using System.Text;

    public class Startup
    {
        private static int totalSum;

        public static void Main()
        {
            int[] dimensions = SplitStringToArray();

            int rowsOfMatrix = dimensions[0];
            int colsOfMatrix = dimensions[1];

            int[][] matrix = new int[rowsOfMatrix][];

            totalSum = 0;
            for (int row = 0; row < rowsOfMatrix; row++)
            {
                SplitStringToArray();
            }

            StringBuilder result = new StringBuilder();
            result.AppendLine(rowsOfMatrix.ToString());
            result.AppendLine(colsOfMatrix.ToString());
            result.AppendLine(totalSum.ToString());

            Console.Write(result);
        }

        private static int[] SplitStringToArray()
        {
            return Console.ReadLine().Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Select(ParseAndAddNumberToSum).ToArray();
        }

        private static int ParseAndAddNumberToSum(string numberToParse)
        {
            int numberToReturn = int.Parse(numberToParse);

            totalSum += numberToReturn;

            return numberToReturn;
        }
    }
}