import java.util.*;

class Main {
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        
        //入力値を設定する
        double numHP = sc.nextInt();
        double numAtk = sc.nextInt();
        
        Integer cnt = 0;
        cnt = (int)Math.ceil(numHP / numAtk);
        
        //出力する
        System.out.println(cnt);
    }    
} import java.util.*; util.* java class Main {
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        
        //入力値を設定する
        double numHP = sc.nextInt();
        double numAtk = sc.nextInt();
        
        Integer cnt = 0;
        cnt = (int)Math.ceil(numHP / numAtk);
        
        //出力する
        System.out.println(cnt);
    }    
} Main public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        
        //入力値を設定する
        double numHP = sc.nextInt();
        double numAtk = sc.nextInt();
        
        Integer cnt = 0;
        cnt = (int)Math.ceil(numHP / numAtk);
        
        //出力する
        System.out.println(cnt);
    } main {
        
        Scanner sc = new Scanner(System.in);
        
        //入力値を設定する
        double numHP = sc.nextInt();
        double numAtk = sc.nextInt();
        
        Integer cnt = 0;
        cnt = (int)Math.ceil(numHP / numAtk);
        
        //出力する
        System.out.println(cnt);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double numHP = sc.nextInt(); numHP sc.nextInt() sc.nextInt sc double numAtk = sc.nextInt(); numAtk sc.nextInt() sc.nextInt sc Integer cnt = 0; cnt 0 cnt = (int)Math.ceil(numHP / numAtk) cnt (int)Math.ceil(numHP / numAtk) Math.ceil Math numHP / numAtk numHP numAtk System.out.println(cnt) System.out.println System.out System System.out cnt String[] args args
import java.util.*;

class Main {
    public static void main(String[] args) {
        
        Scanner sc = new Scanner(System.in);
        
        //入力値を設定する
        double numHP = sc.nextInt();
        double numAtk = sc.nextInt();
        
        Integer cnt = 0;
        cnt = (int)Math.ceil(numHP / numAtk);
        
        //出力する
        System.out.println(cnt);
    }    
}