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

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發送短信 : Introduction to Python programming in finance