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