import java.util.Scanner;
import java.lang.Math; 

public class Main 
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
		double h= input.nextDouble();
		double a = input.nextDouble();
		int res = (int)Math.ceil(h/a);
		 
		System.out.println(res);
		
	}

}

/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