import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

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

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