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

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發送短信 : Cyclic codes over GR(p2,m) of length pk