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  ______   __   __   __   _     ______            
 /_   _//  \ \\/ // | || | ||  /_   _//   ____    
 `-| |,-    \ ` //  | '--' ||   -| ||-   |    \\  
   | ||      | ||   | .--. ||   _| ||_   | [] ||  
   |_||      |_||   |_|| |_||  /_____//  |  __//  
   `-`'      `-`'   `-`  `-`   `-----`   |_|`-`   
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發送短信 : Stabilization, Safety, and Security of Distributed Systems