import java.util.Scanner;

public class Ural{


    public static void main(String[] args)
    {
        int n=0;
        int k=0;
        int result=0;
        Scanner in=new Scanner(System.in);
        n=in.nextInt();//zakaz
        k=in.nextInt();
        while(n>k)
        {    n-=k;
            result+=2;
        }
        if(n<k)
        {
            result+=1;
        }

        System.out.println(result);
    }
}


programm work fine but timus not accept((

and what he mean wrong answer?