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           _    _     _____     _____             
  ____    | || | ||  /  ___||  |  ___||     ___   
 |    \\  | || | || | // __    | ||__      /   || 
 | [] ||  | \\_/ || | \\_\ ||  | ||__     | [] || 
 |  __//   \____//   \____//   |_____||    \__ || 
 |_|`-`     `---`     `---`    `-----`      -|_|| 
 `-`                                         `-`

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發送短信 : On the Hamming distances of repeated-root constacyclic codes of length 4p <sup>s</sup>