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SAO PAULO, Oct 6 (Reuters) - Brazilian financial markets rallied on Monday after a pro-business candidate surged to an unexpectedly strong finish in Sunday's election, potentially reframing the economic debate in what is expected to be a tight runoff later this month against President Dilma Rousseff.
Shares of Brazil's state-run oil producer Petroleo Brasileiro SA, known as Petrobras, soared 11 percent, their biggest one-day gain in nearly six years. (Reporting by Asher Levine, editing by G Crosse)