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

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發送短信 : Enumeration of small nonisomorphic 1-rotational twofold triple systems