import java.util.*;
//import java.util.stream.Collectors;

public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		int count = 0;
		for(int i=0; h>0; i++){
			h -= a;
			count++;
		}
		System.out.println(count);
	}
} import java.util.*; util.* java public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		int count = 0;
		for(int i=0; h>0; i++){
			h -= a;
			count++;
		}
		System.out.println(count);
	}
} Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		int count = 0;
		for(int i=0; h>0; i++){
			h -= a;
			count++;
		}
		System.out.println(count);
	} main {
		Scanner sc = new Scanner(System.in);
		
		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		int count = 0;
		for(int i=0; h>0; i++){
			h -= a;
			count++;
		}
		System.out.println(count);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int h = Integer.parseInt(sc.next()); h Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int a = Integer.parseInt(sc.next()); a Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int count = 0; count 0 for(int i=0; h>0; i++){
			h -= a;
			count++;
		} int i=0; int i=0; i 0 h>0 h 0 i++ i++ i {
			h -= a;
			count++;
		} {
			h -= a;
			count++;
		} h -= a h a count++ count System.out.println(count) System.out.println System.out System System.out count String[] args args public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		int count = 0;
		for(int i=0; h>0; i++){
			h -= a;
			count++;
		}
		System.out.println(count);
	}
} public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		int count = 0;
		for(int i=0; h>0; i++){
			h -= a;
			count++;
		}
		System.out.println(count);
	}
} Main
import java.util.*;
//import java.util.stream.Collectors;

public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		
		int h = Integer.parseInt(sc.next());
		int a = Integer.parseInt(sc.next());
		int count = 0;
		for(int i=0; h>0; i++){
			h -= a;
			count++;
		}
		System.out.println(count);
	}
}
