import java.util.Scanner;

public class Main{

    public static void main(String args[]){
		solve();
    }
	
	private static void solve(){
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		if(H%A == 0){
			System.out.println(H/A);
		}else{
			System.out.println(H/A + 1);
		}
	}
}
/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