B33113313132313113313223313331311331333132311331333133313232211211   >>    B3311331313231311331322331333131133133313231133133313331323221121   <<    B33113313132313113313223313331311331333132311331333133313232211213   >>      B33113313132313113313223313331311331333132311331333133313232211212   >>