B33113313132313113313223313331323132313232111333132322231323221   >>    B3311331313231311331322331333132313231323211133313232223132322   <<    B33113313132313113313223313331323132313232111333132322231323223   >>      B33113313132313113313223313331323132313232111333132322231323222   >>