import java.util.Scanner;
public class Main {
	public static void main(String[]args) {
		Scanner s = new Scanner(System.in);
		double h = s.nextDouble();
		double a = s.nextDouble();
		double c = h/a;
		if(h%a!=0) {
			c++;
		}
		System.out.print((short)c);
	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz