B33113313132313113313223313331323132333132313331312133313232131   >>    B3311331313231311331322331333132313233313231333131213331323213   <<    B33113313132313113313223313331323132333132313331312133313232133   >>      B33113313132313113313223313331323132333132313331312133313232132   >>