Training Lab

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

namespace _01.Training_Lab
{
    class Program
    {
        static void Main(string[] args)
        {

            double height = double.Parse(Console.ReadLine());
            double width = double.Parse(Console.ReadLine());

            width *= 100;
            height *= 100;

            double deskPerRow = Math.Floor((width-100)/70);
            double rows = Math.Floor(height / 120);

            int desks = (int)rows * (int)deskPerRow - 3;

            Console.WriteLine(desks);


        }
    }
}