using System;

namespace ConsoleApp34
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter the height in pixels");
            int H = int.Parse(Console.ReadLine());
            Console.WriteLine("Enter the width in pixels");
            int W = int.Parse(Console.ReadLine());
            int C = 80;
            Console.WriteLine((H / C) * (W / C) + " whole rectangles");
        }
    }
}