import java.util.Scanner;
 
public class Main{

public static void main(String[] args) {
 
int count = 0;
int H;
int A;
 
Scanner scanner = new Scanner(System.in);
H = scanner.nextInt();
A = scanner.nextInt();
 
while (H>0){
  H = H-A;
  count = count + 1;
}
  
System.out.println(count);
  
}
  
}
/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