B33113313132313113313223313331311331333131113331333133313233313232211211   >>    B3311331313231311331322331333131133133313111333133313331323331323221121   <<    B33113313132313113313223313331311331333131113331333133313233313232211213   >>      B33113313132313113313223313331311331333131113331333133313233313232211212   >>