($1 = 3.098 reais) (Reporting by Brad Haynes; Additional reporting by Sergio Spagnuolo in Curitiba, Pedro Fonseca in Rio de Janeiro, Guillermo Parra-Bernal, Brad Brooks, Marcelo Teixeira and Alberto Alerigi in Sao Paulo, Mark Weinraub in Washington; Editing by Daniel Flynn, Marguerita Choy and Bernard Orr)