import java.util.Scanner;
public class Main{

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		int h=input.nextInt();
		int a = input.nextInt();
		int sum=0;
		sum+=h/a;
		if(h%a >0)
			sum+=1;
		System.out.println(sum);
				
		

	}

}

/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