
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ


		    Scanner scanner = new Scanner(System.in);
		    
		    int H = scanner.nextInt();
		    int A = scanner.nextInt();
		    int i = 0;
		    
		    while(true){
		    	if(H-A*i<=0) {
		    		break;
		    	}
		      i++;
		    }
		    System.out.println(i);
		  }
}

/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