TrainingLab

using System;

namespace TrainingLab
{
    class Program
    {
        static void Main(string[] args)
        {
            var length = double.Parse(Console.ReadLine());
            var width = double.Parse(Console.ReadLine());
            var workStationWidth = 70;//ширината на бюрото
            var workStationLength = 120;//дължината на бюрото

            var widthCm = width * 100 - 100;

            var totalWidth = Math.Floor(widthCm / workStationWidth);
            var totalLength = Math.Floor((length * 100) / workStationLength);
            var result = totalWidth * totalLength - 3;

            Console.WriteLine(result);
        }
    }
}