import java.util.Scanner;
public class Main {
	public static void main (String args[]) {
		Scanner lector=new Scanner (System.in);
		int m=0;
		double H=lector.nextDouble();
		double A=lector.nextDouble();
		do {
			m++;
			H=( H-A);
		} while (H>0);
		System.out.print (m);
     }
}

/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