import java.util.*;

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

public class Main {
    public static void main(String[] args){
        
        Scanner scanner = new Scanner(System.in);
        double H = scanner.nextDouble();
        double A = scanner.nextDouble();
        long S = (long)Math.ceil(H/A);
        
        System.out.println(S);
    }
}
