تولید شکل قلب در C#

using System;

public class HeartGenerator
{
    public static string GenerateHeart(int size)
    {
        string[] heart = null;

if (size == 5)
        {
            heart = new string[]
            {
                "  010  ",
                " 10101 ",
                "1010101",
                " 01010 ",
                "  101  "
            };
        }
        else if (size == 7)
        {
            heart = new string[]
            {
                "   010   ",
                "  10101  ",
                " 1010101 ",
                "101010101",
                " 0101010 ",
                "  10101  ",
                "   101   "
            };
        }
        else if (size == 9)
        {
            heart = new string[]
            {
                "    010    ",
                "   10101   ",
                "  1010101  ",
                " 101010101 ",
                "10101010101",
                " 010101010 ",
                "  1010101  ",
                "   10101   ",
                "    101    "
            };
        }
        else
        {
            return "Error: Size not supported. Please use 5, 7, or 9.";
        }

return string.Join(Environment.NewLine, heart);
    }

public static void Main(string[] args)
    {
        Console.Write("Enter the size of the heart (5, 7, or 9): ");
        if (int.TryParse(Console.ReadLine(), out int size))
        {
            string heartShape = GenerateHeart(size);
            Console.WriteLine(heartShape);
        }
        else
        {
            Console.WriteLine("Invalid input. Please enter a valid number.");
        }
    }
}

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