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E. Pursuit For Artifactstime limit per test3 secondsmemory limit per test512 megabytesinputstandard inputoutputstandard outputJohnny is playing a well-known computer game. The game are in some country

E. New Reformtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputBerland has n cities connected by m bidirectio