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Jânio da Silva Quadros was a Brazilian lawyer and politician who served as the 22nd president of Brazil from January 31 to August 25, 1961, when he resigned from office. He also served as the 24th and 36th mayor of São Paulo, and the 18th governor of the state of São Paulo. Quadros was known for his populist style of government and eccentric behavior. As president, he focused on economic reform and attempted to root out corruption. He also pursued an independent foreign policy, trying to balance Brazil's relations between the United States and the Eastern Bloc. Although he was elected by a huge margin, his term was marked by uncertainty and political instability, culminating in his resignation. That unexpected move caused a national crisis, with the presidency being assumed by João Goulart after the Legality Campaign.