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E. Andrew and Taxi Andrew prefers taxi to other means of transport, but recently most taxi drivers have been acting inappropriately. In order to earn more money, taxi drivers started to drive in circ...

C. Sasha and a Bit of Relax time limit per test   1 second    memory limit per test   256 megabytes Sasha likes programming. Once, during a very long contest, Sasha decided that he was a bit tired a...