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]);
    int num = 0;    
    for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    }
    System.out.println(num);
  }
} 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]);
    int num = 0;    
    for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    }
    System.out.println(num);
  }
} 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]);
    int num = 0;    
    for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    }
    System.out.println(num);
  } 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]);
    int num = 0;    
    for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    }
    System.out.println(num);
  } 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 int num = 0; num 0 for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    } int i = 1; int i = 1; i 1 h>0 h 0 i++ i++ i {
      h=h-a;
      num++;
    } {
      h=h-a;
      num++;
    } h=h-a h h-a h a num++ num System.out.println(num) System.out.println System.out System System.out num 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]);
    int num = 0;    
    for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    }
    System.out.println(num);
  }
} 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]);
    int num = 0;    
    for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    }
    System.out.println(num);
  }
} 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]);
    int num = 0;    
    for(int i = 1; h>0; i++){
      h=h-a;
      num++;
    }
    System.out.println(num);
  }
}