import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	
	public static void main(String args[]) throws IOException {
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		String parts[] = br.readLine().split(" ");
		
		int H = Integer.parseInt(parts[0]);
		int A = Integer.parseInt(parts[1]);
		
		int a = H%A;
		
		if(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