import java.util.*;

class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int H = sc.nextInt();
    int A = sc.nextInt();
    int ans = 0;
    for (int i=1;H>0;i++){
      H -= A;
      ans = i;
    }
    System.out.println(ans);
  }
} import java.util.*; util.* java class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int H = sc.nextInt();
    int A = sc.nextInt();
    int ans = 0;
    for (int i=1;H>0;i++){
      H -= A;
      ans = i;
    }
    System.out.println(ans);
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int H = sc.nextInt();
    int A = sc.nextInt();
    int ans = 0;
    for (int i=1;H>0;i++){
      H -= A;
      ans = i;
    }
    System.out.println(ans);
  } main {
    Scanner sc = new Scanner(System.in);
    int H = sc.nextInt();
    int A = sc.nextInt();
    int ans = 0;
    for (int i=1;H>0;i++){
      H -= A;
      ans = i;
    }
    System.out.println(ans);
  } 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 ans = 0; ans 0 for (int i=1;H>0;i++){
      H -= A;
      ans = i;
    } int i=1; int i=1; i 1 H>0 H 0 i++ i++ i {
      H -= A;
      ans = i;
    } {
      H -= A;
      ans = i;
    } H -= A H A ans = i ans i System.out.println(ans) System.out.println System.out System System.out ans String[] args args
import java.util.*;

class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int H = sc.nextInt();
    int A = sc.nextInt();
    int ans = 0;
    for (int i=1;H>0;i++){
      H -= A;
      ans = i;
    }
    System.out.println(ans);
  }
}
