import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int g = sc.nextInt();
		int s;
		if(n % g == 0){
			s = n / g;
			System.out.println(s);
		}else if(n % g != 0){
			s = n / g + 1;
			System.out.println(s);
		}
		sc.close();
	}

}
/**************************************************************
	Problem: 1648
	User: admin
	Language: Java
	Result: Accepted
	Time:650 ms
	Memory:39836 kb
****************************************************************/