Master Plan

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Pr0ghav has ICPC finals tomorrow, but he is trapped in prison. He needs to escape and reach the Finals venue or else his team would think he has betrayed them. Since he is a very nice person, he believes it would be unfair to escape from prison alone. Luckily he knows the coordinates of the prison cell of each of the $N - 1$ people in prison, so he has decided to make a master plan to ensure that

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solution.cppC++17

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