05.Elevator

using System;
class Program
{
    static void Main()
    {
        int n = int.Parse(Console.ReadLine());
        int p = int.Parse(Console.ReadLine());

        int courses = n / p;
        int ostatuk = n % p;

        if (ostatuk == 0)
        {
            Console.WriteLine(courses);
        }
        else if (ostatuk != 0)
        {
            Console.WriteLine(courses + ostatuk / ostatuk);
        }
    }
}