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             ___     __   __   _    _     _  _   
  ____      / _ \\   \ \\/ // | || | ||  | \| || 
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 | [] ||  |  ___  ||  / . \\  | \\_/ ||  | .  || 
 |  __//  |_||  |_|| /_//\_\\  \____//   |_|\_|| 
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發送短信 : Introduction to Python programming in finance