import java.util.Scanner;

public class walk {
	
	public static void main(String[] args) {
		int a = new Scanner(System.in).nextInt();
		int b = new Scanner(System.in).nextInt();
		
		if(0 == a%b ) {
		    System.out.println(a/b);
		}else {System.out.println(a/b + 1);
		}
		
		
	}

}