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  ______     ___     _    _      ___      ______  
 /_   _//   / _ \\  | || | ||   / _ \\   /_   _// 
   | ||    | / \ || | || | ||  | / \ ||  `-| |,-  
  _| ||    | \_/ || | \\_/ ||  | \_/ ||    | ||   
 /__//      \___//   \____//    \___//     |_||   
 `--`       `---`     `---`     `---`      `-`'

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Text this: On a class of constacyclic codes of length 4ps over ð ½pm + uð ½pm