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

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發送短信 : Anti-complex sets and reducibilities with tiny use