TrainRoom

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

namespace TrainingLab
{
    class Program
    {
        static void Main(string[] args)
        {
            var lenght = double.Parse(Console.ReadLine());
            var width = double.Parse(Console.ReadLine());

            var calculateLenght = Math.Truncate(lenght/1.2);
            var calculateWidth = Math.Truncate((width-1) / 0.7);
            var all = (calculateLenght * calculateWidth - 3);
            Console.WriteLine(Math.Truncate(all));
        }
    }
}