import java.util.*;
public class Main {
    public static void main(String[] args) {
    
    Scanner sc = new Scanner(System.in);
      
      double H =sc.nextDouble();
      double A =sc.nextDouble();
        
      //切り上げ
      System.out.println((int)Math.ceil(H /A));      
        
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) {
    
    Scanner sc = new Scanner(System.in);
      
      double H =sc.nextDouble();
      double A =sc.nextDouble();
        
      //切り上げ
      System.out.println((int)Math.ceil(H /A));      
        
    }
} Main public static void main(String[] args) {
    
    Scanner sc = new Scanner(System.in);
      
      double H =sc.nextDouble();
      double A =sc.nextDouble();
        
      //切り上げ
      System.out.println((int)Math.ceil(H /A));      
        
    } main {
    
    Scanner sc = new Scanner(System.in);
      
      double H =sc.nextDouble();
      double A =sc.nextDouble();
        
      //切り上げ
      System.out.println((int)Math.ceil(H /A));      
        
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double H =sc.nextDouble(); H sc.nextDouble() sc.nextDouble sc double A =sc.nextDouble(); A sc.nextDouble() sc.nextDouble sc System.out.println((int)Math.ceil(H /A)) System.out.println System.out System System.out (int)Math.ceil(H /A) Math.ceil Math H /A H A String[] args args public class Main {
    public static void main(String[] args) {
    
    Scanner sc = new Scanner(System.in);
      
      double H =sc.nextDouble();
      double A =sc.nextDouble();
        
      //切り上げ
      System.out.println((int)Math.ceil(H /A));      
        
    }
} public class Main {
    public static void main(String[] args) {
    
    Scanner sc = new Scanner(System.in);
      
      double H =sc.nextDouble();
      double A =sc.nextDouble();
        
      //切り上げ
      System.out.println((int)Math.ceil(H /A));      
        
    }
} Main
import java.util.*;
public class Main {
    public static void main(String[] args) {
    
    Scanner sc = new Scanner(System.in);
      
      double H =sc.nextDouble();
      double A =sc.nextDouble();
        
      //切り上げ
      System.out.println((int)Math.ceil(H /A));      
        
    }
}