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

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發送短信 : Virtual piano with real-time interaction using automatic marker detection