import java.util.*;
class Main {
  public static void main(String[]agrs) {
    Scanner scanner = new Scanner(System.in);
    int h = scanner.nextInt();
    int a = scanner.nextInt();
    int aN = 0;
    
    if(h<a){
      System.out.println(1);
    }else{
      for(int i=h; i>0; i -=a){
        aN ++;
      }
      System.out.println(aN);
    }
  }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz