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

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發送短信 : Mathematical Mobile Apps Via Rural Casting