# Competition among Nihar, PiHan and Calvin!

Nihar got a good grade at school, so I gave him $${N}$$ two dollar bills. Then, since PiHan got a better grade, I gave him just enough five dollar bills so that he got more money than Nihar. Finally, since Calvin got the best grade, I gave him just enough ten dollar bills so that he got more money than PiHan. What is the maximum amount of money (in terms of $$N$$) that Calvin could have received?

$$N$$ is a positive integer.

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