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

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