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

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發送短信 : Efficient routing algorithms for anycast routing