Historical Junctions

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After the Great ChefLand War, ChefTown consisted of N historical junctions with a sightseeing place in each of them and M cobbled roads, connecting them. It is possible to reach any junction from any other one, possibly, via intermediate junctions. The ChefTown Restoration Committee (CTRC) now wants to make the town more convenient, thus, attractive, for the tourists. The essential requirement f

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