import java.io.*;

public class Main {
    
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
		String str[] = br.readLine().split(" ");
 
		int h = Integer.parseInt(str[0]);
		int a = Integer.parseInt(str[1]);
        br.close();

        System.out.println((h + a - 1) / a);
    }
} import java.io.*; io.* java public class Main {
    
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
		String str[] = br.readLine().split(" ");
 
		int h = Integer.parseInt(str[0]);
		int a = Integer.parseInt(str[1]);
        br.close();

        System.out.println((h + a - 1) / a);
    }
} Main public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
		String str[] = br.readLine().split(" ");
 
		int h = Integer.parseInt(str[0]);
		int a = Integer.parseInt(str[1]);
        br.close();

        System.out.println((h + a - 1) / a);
    } main {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
		String str[] = br.readLine().split(" ");
 
		int h = Integer.parseInt(str[0]);
		int a = Integer.parseInt(str[1]);
        br.close();

        System.out.println((h + a - 1) / a);
    } BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) String str[] = br.readLine().split(" "); str br.readLine().split(" ") br.readLine().split br.readLine() br.readLine br " " int h = Integer.parseInt(str[0]); h Integer.parseInt(str[0]) Integer.parseInt Integer str[0] str 0 int a = Integer.parseInt(str[1]); a Integer.parseInt(str[1]) Integer.parseInt Integer str[1] str 1 br.close() br.close br System.out.println((h + a - 1) / a) System.out.println System.out System System.out (h + a - 1) / a (h + a - 1) h + a h a 1 a String[] args args public class Main {
    
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
		String str[] = br.readLine().split(" ");
 
		int h = Integer.parseInt(str[0]);
		int a = Integer.parseInt(str[1]);
        br.close();

        System.out.println((h + a - 1) / a);
    }
} public class Main {
    
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
		String str[] = br.readLine().split(" ");
 
		int h = Integer.parseInt(str[0]);
		int a = Integer.parseInt(str[1]);
        br.close();

        System.out.println((h + a - 1) / a);
    }
} Main
import java.io.*;

public class Main {
    
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
		String str[] = br.readLine().split(" ");
 
		int h = Integer.parseInt(str[0]);
		int a = Integer.parseInt(str[1]);
        br.close();

        System.out.println((h + a - 1) / a);
    }
}