Spiral Matrix

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

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

            int[,] matrix = new int[n,n];
            string direction = "right";
            int currentRow = 0;
            int currentCol = 0;

            for (int i = 1; i <= n * n; i++)
            {


                if (direction == "right" && (currentCol >= n || matrix[currentRow, currentCol] != 0))
                {
                    currentRow++;
                    currentCol--;
                    direction = "down";
                }
                else if (direction == "down" && (currentRow >= n || matrix[currentRow, currentCol] != 0))
                {
                    currentRow--;
                    currentCol--;
                    direction = "left";
                }
                else if (direction == "left" && (currentCol < 0 || matrix[currentRow, currentCol] != 0))
                {
                    currentRow--;
                    currentCol++;
                    direction = "up";
                }
                else if (direction == "up" && (currentRow < 0 || matrix[currentRow, currentCol] != 0))
                {
                    currentRow++;
                    currentCol++;
                    direction = "right";
                }
                matrix[currentRow, currentCol] = i;


                if (direction == "right")
                {
                    currentCol++;
                }
                else if (direction == "down")
                {
                    currentRow++;
                }
                else if (direction == "left")
                {
                    currentCol--;
                }
                else if (direction == "up")
                {
                    currentRow--;
                }
            }
            for (int i = 0; i < n; i++)
            {
                for (int j = 0; j < n; j++)
                {
                    Console.Write(matrix[i,j] + "     ");
                }
                Console.WriteLine();
            }
        }
    }
}