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

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發送短信 : On the prime values represented by polynomials