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

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發送短信 : Large sieve inequality with characters to square moduli