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

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發送短信 : On Completely k-Magic Regular Graphs