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

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發送短信 : Scalable threshold closure