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[A-Za-z]+$
^[a-zA-Z0-9_-]+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-]+)+
^1[0-9]{10}$
(^d{15}$)|(^d{17}([0-9])|X)$
^[a-zA-Z]w{5,17}$
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