//package atcoder;
 
import java.util.*;
import java.math.BigDecimal;
 
public class Main{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int count = 0;
		while(H>0) {
			H = H-A;
			count ++;
		}
		System.out.println(count);
	}
} import java.util.*; util.* java import java.math.BigDecimal; BigDecimal java.math public class Main{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int count = 0;
		while(H>0) {
			H = H-A;
			count ++;
		}
		System.out.println(count);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int count = 0;
		while(H>0) {
			H = H-A;
			count ++;
		}
		System.out.println(count);
	} main {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int count = 0;
		while(H>0) {
			H = H-A;
			count ++;
		}
		System.out.println(count);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int H = sc.nextInt(); H sc.nextInt() sc.nextInt sc int A = sc.nextInt(); A sc.nextInt() sc.nextInt sc int count = 0; count 0 while(H>0) {
			H = H-A;
			count ++;
		} H>0 H 0 {
			H = H-A;
			count ++;
		} H = H-A H 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 = sc.nextInt();
		int A = sc.nextInt();
		int count = 0;
		while(H>0) {
			H = H-A;
			count ++;
		}
		System.out.println(count);
	}
} public class Main{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int count = 0;
		while(H>0) {
			H = H-A;
			count ++;
		}
		System.out.println(count);
	}
} Main
//package atcoder;
 
import java.util.*;
import java.math.BigDecimal;
 
public class Main{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int H = sc.nextInt();
		int A = sc.nextInt();
		int count = 0;
		while(H>0) {
			H = H-A;
			count ++;
		}
		System.out.println(count);
	}
}