B33113313132313113313223313331311331333131113331333133313233313232213231211   >>    B3311331313231311331322331333131133133313111333133313331323331323221323121   <<    B33113313132313113313223313331311331333131113331333133313233313232213231213   >>      B33113313132313113313223313331311331333131113331333133313233313232213231212   >>