prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  tests
   +--helpers
   |   `--browser
   +--regression
   |   `--libs
   +--test262
   |   `--test262
   `--unit
       `--fixtures
  ```
  
  Convert this description:
  
  src is a root directory that incorporates 2 subdirectories: hello and main.
  At the top level, 'hello' retains 3 directories: cpp, headers, rc.
  In nested path 'hello / cpp', Inside 'cpp', you'll find it is devoid of content.
  At level 2, in directory path 'hello → headers', The 'headers' repository is unpopulated.
  In nested path 'hello → rc', The 'rc' storage space appears to be unused.
  Back to the top level.
  In the root directory, 'main' features 1 child directories: cpp.
  At level 2, in directory path 'main / cpp', The 'cpp' directory stands empty.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "src\n +--hello\n |   +--cpp\n |   +--headers\n |   `--rc\n `--main\n     `--cpp", "description": "src is a root directory that incorporates 2 subdirectories: hello and main.\nAt the top level, 'hello' retains 3 directories: cpp, headers, rc.\nIn nested path 'hello / cpp', Inside 'cpp', you'll find it is devoid of content.\nAt level 2, in directory path 'hello \u2192 headers', The 'headers' repository is unpopulated.\nIn nested path 'hello \u2192 rc', The 'rc' storage space appears to be unused.\nBack to the top level.\nIn the root directory, 'main' features 1 child directories: cpp.\nAt level 2, in directory path 'main / cpp', The 'cpp' directory stands empty.\n"}