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

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發送短信 : The capacity regions of some classes of deterministic relay channels