TrainingLab - Chapter 2.1

//Task 001, Chapter 2.1
using System;

public class TrainingLab
{
    static void Main()
    {
        double len = double.Parse(Console.ReadLine());
        double width = double.Parse(Console.ReadLine());

        int cols = ((int)(width * 100 - 100) / 70);
        int rows = ((int)(len * 100 / 120));
        int seats = cols * rows - 3;

        Console.WriteLine(seats);
    }
}