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

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發送短信 : Integral points of Pn-{2 n+1 hyperplanes in general position}