using System;

​

namespace HeartShape

{

    public class Program

    {

        public static void Main(string[] args)

        {

            DrawHeart();

        }

​

        static void DrawHeart()

        {

            double x, y;

​

            for (double i = 1.3; i >= -1.1; i -= 0.1)

            {

                for (double j = -2.5; j <= 2.5; j += 0.05)

                {

                    x = j;

                    y = i;

​

                    double equation = Math.Pow(x * x + y * y - 1, 3) - x * x * y * y * y;

​

                    if (equation <= 0)

                        Console.Write("@");

                    else

                        Console.Write(" ");

                }

                Console.WriteLine();

            }

        }

    }

}