Donald was not very good at math. But what he thought was not to study harder but to cheat in the exams. In one exam, Donald chose to sit next to Smith, who was always at the top of the class in math. Donald carefully copied Smith's answers on to his own exam paper. Days later the results came out. And the teacher promised to give a prize to the student who got the highest grade. Although Donald and Smith both got full marks, the teacher gave the prize to Smith. Donald was angry and said, "That's not fair. I got the same score as Smith. ""That's true, "the teacher said, "but you signed the name of Smith on your exam paper."
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