import java.io.*;
import java.util.*;

class Main{
  public static void main(String[] args)throws IOException {

    Scanner scan=new Scanner(System.in);
    int n=Integer.parseInt(scan.next());
    int f=Integer.parseInt(scan.next());
    int floor=1;
    
    if(n<f){
      System.out.println(floor);
    }else{
      floor+=n/f;
      System.out.println(floor);
    }
  }
}