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

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發送短信 : Fixed points of uniformly lipschitzian mappings