B33113313132313113313223313331323132313231211113313233313231323223313232223221   >>    B3311331313231311331322331333132313231323121111331323331323132322331323222322   <<    B33113313132313113313223313331323132313231211113313233313231323223313232223223   >>      B33113313132313113313223313331323132313231211113313233313231323223313232223222   >>