B33113313132313113313223313331323133313223313231333133313311221211111112121   >>    B3311331313231311331322331333132313331322331323133313331331122121111111212   <<    B33113313132313113313223313331323133313223313231333133313311221211111112123   >>      B33113313132313113313223313331323133313223313231333133313311221211111112122   >>