Text this

Number:

Provider:

CAPTCHA:

  _____    __   __   __   __   _    _    __   __  
 |__  //   \ \\/ //  \ \\/ // | || | ||  \ \\/ // 
   / //     \ ` //    \   //  | || | ||   \   //  
  / //__     | ||     / . \\  | \\_/ ||   / . \\  
 /_____||    |_||    /_//\_\\  \____//   /_//\_\\ 
 `-----`     `-`'    `-`  --`   `---`    `-`  --`

Please enter what you see:

Text this: Ultra-succinct representation of ordered trees with applications