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

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發送短信 : Understanding logical reasoning through computer systems