import java.util.*;

public class Test {
    public static void main(String[] args) {

        Scanner s = new Scanner(System.in);
        int st = s.nextInt(),f = s.nextInt();
        int fl = 0;
        
        do{
        	st -= f;
        	fl++;

        }while(st > 0);

        System.out.println(fl);
    }
}