Generate rectangle new2

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

namespace Exercise_12_Generate_rectan
{
    class Program
    {
        static void Main(string[] args)
        {

            int n = int.Parse(Console.ReadLine());
            int m = int.Parse(Console.ReadLine());

            int areaRectangle;
            int cnt = 0;

            if (n < 1)
            {
                Console.WriteLine("No");
                return;
            }

            for (int x1 = -n; x1 <= 0; x1++)
            {
                for (int y1 = -n; y1 <= 0; y1++)
                {
                    for (int x2 = x1+1; x2 <= n; x2++)
                    {
                        for (int y2 = y1+1; y2 <= n; y2++)
                        {
                                areaRectangle = (x2 - x1) * (y2 - y1);

                            if (areaRectangle >= m)
                            {
                                Console.Write("({0}, {1}) ({2}, {3}) -> {4}",
                                x1, y1, x2, y2, areaRectangle);

                                Console.WriteLine();
                                cnt++;
                            }

                        }
                    }
                }

            }

            if (cnt == 0)
            {
                Console.WriteLine("No");
            }
        }
    }
}