prompt: Your task is to convert the following English description into an ASCII tree format.
  
  src is a base directory that incorporates 2 subdirectories: hello and main.
  In the root directory, 'hello' groups 2 subdirectories: c, headers.
  Within directory hierarchy 'hello > c', Inside 'c', you'll find it sits empty.
  Within directory hierarchy 'hello / headers', 'headers' hasn't been filled with any content.
  In the root directory, 'main' encompasses 1 child directories: c.
  Within directory hierarchy 'main → c', Inside 'c', you'll find it remains unused.
  Back to the top level.
  
  
  Format your response in this style:
  ```
  app
   +--(bar)
   |   `--bar
   `--(foo)
       `--foo
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "src\n +--hello\n |   +--c\n |   `--headers\n `--main\n     `--c", "description": "src is a base directory that incorporates 2 subdirectories: hello and main.\nIn the root directory, 'hello' groups 2 subdirectories: c, headers.\nWithin directory hierarchy 'hello > c', Inside 'c', you'll find it sits empty.\nWithin directory hierarchy 'hello / headers', 'headers' hasn't been filled with any content.\nIn the root directory, 'main' encompasses 1 child directories: c.\nWithin directory hierarchy 'main \u2192 c', Inside 'c', you'll find it remains unused.\nBack to the top level.\n"}