Квадратна Матрица

using System;
using System.IO;
using System.Text;
using System.Linq;

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {

            var matrixTxT = File.ReadAllText(@"E:\Downloads\ChromeDownloads\matrix.txt");
          //  var str = matrixTxT.Split(new char[] { '\t', '\n'}, StringSplitOptions.RemoveEmptyEntries);


            /* string[] wordsArray = matrixTxT.Split(new char[] {' '}, StringSplitOptions.RemoveEmptyEntries);
             foreach(string word in wordsArray)
             {
                 Console.Write(word+" ");
             }
            */


            // var rows= File.ReadAllLines(@"E:\Downloads\ChromeDownloads\matrix.txt").Length;
            // var cols =(str.Length/rows);
            int rows = int.Parse(Console.ReadLine());
            int cols = int.Parse(Console.ReadLine());

            int i = 0 , k = 0;

            int[,] matrix = new int[rows, cols];

      //     Console.WriteLine($"\nRows:{rows} Cols:{cols} Items:{str.Length}");

            foreach (var row in matrixTxT.Split('\n'))
            {

                string[] input = row.Split("\t");
                int r = int.Parse(input[0])-1;
                int c = int.Parse(input[1])-1;
                if (input[2].Equals(" ") || input[2].Equals(" \r"))
                {
                    matrix[r, c] = -1;

                }
                else
                {
                    matrix[r, c] = int.Parse(input[2]);
                }

            }

            int evenSum = 0;
            int oddSum = 0;

            int oddColSum = 0;
            int evenRowSum = 0;
            for (int row = 0; row < rows; row++)
            {

                for (int col = 0; col < cols; col++)
                {
                    int num = matrix[row, col];
                    if (num % 2 == 0)
                    {
                        evenSum += num;
                    }
                    else if(num % 2 != 0)
                    {
                        oddSum += num;
                    }

                    if (col % 2==0 )
                    {
                        oddColSum += num;
                    }
                    if(row % 2 != 0)
                    {
                        evenRowSum += num;
                    }
                    Console.Write(matrix[row,col]+" ");
                }
                Console.WriteLine();
            }

            Console.WriteLine($"Even numbers sum: {evenSum}\nOdd numbers sum: {oddSum}");
            Console.WriteLine($"Odd column sum: {oddColSum}\nEven row sum: {evenRowSum}");


        }
    }
}


/* test input
1   1   2
1   2   1
1   3
1   4   5
2   1   2
2   2   1
2   3   7
2   4   3
3   1   2
3   2   1
3   3   4
3   4   5
4   1   3
4   2   5
4   3   6
4   4
*/