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  ______    _____     ______     ___      _____   
 /_   _//  |  ___||  /_   _//   / _ \\   /  ___|| 
   | ||    | ||__      | ||    | / \ || | // __   
  _| ||    | ||__     _| ||    | \_/ || | \\_\ || 
 /__//     |_____||  /__//      \___//   \____//  
 `--`      `-----`   `--`       `---`     `---`

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Text this: Twin chromatic indices of some graphs with maximum degree 3