Matrix

using System;

namespace Second2DArray
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.Write("Enter the number of rows: ");
            int rowsInMatrix = int.Parse(Console.ReadLine());
            Console.Write("Enter the number of cols: ");
            int colsInMatrix = int.Parse(Console.ReadLine());
            int[,] matrix = new int[rowsInMatrix, colsInMatrix];

            //the rows and cols are upside down because the way i want the matrix to be ordered is as follows: [0,0], [1,0], [2,0], [3,0]
            //                                                                                                 [0,1], [1,1], [2,1], [3,1]
            int outputValueForEven = 1;
            int outputValueForOdd = 1;
            for (int cols = 0; cols < matrix.GetLength(1); cols++)
            {
                if (cols % 2 == 0)
                {
                    outputValueForEven = outputValueForOdd;
                    for (int rowsEven = 0; rowsEven < matrix.GetLength(0); rowsEven++)
                    {
                        matrix[rowsEven, cols] = outputValueForEven;
                        outputValueForEven += 1;
                    }
                }
                else
                {
                    outputValueForOdd = outputValueForEven;
                    for (int rowsOdd = matrix.GetLength(0) - 1; rowsOdd >= 0; rowsOdd--)
                    {
                        matrix[rowsOdd, cols] = outputValueForOdd;
                        outputValueForOdd += 1;
                    }
                }
            }

            for (int rows = 0; rows < matrix.GetLength(0); rows++)
            {
                for (int cols = 0; cols < matrix.GetLength(1); cols++)
                {
                    Console.Write("{0} ", matrix[rows, cols]);
                }

                Console.WriteLine();
            }
        }
    }
}