B33113313132313113313223313331323131323133313232233132313231323221212121   >>    B3311331313231311331322331333132313132313331323223313231323132322121212   <<    B33113313132313113313223313331323131323133313232233132313231323221212123   >>      B33113313132313113313223313331323131323133313232233132313231323221212122   >>