using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("please write first number: ");

        int first_num = Int32.Parse(Console.ReadLine());

        Console.WriteLine("please write secound number: ");

        int second_num = Int32.Parse(Console.ReadLine());

        int numbers_wo_remainer = 0;

        for(int counter = 1; counter <= first_num; counter++)

        {

            if (counter % second_num == 0)

                numbers_wo_remainer++;

        }

        Console.WriteLine(numbers_wo_remainer);

    }

}