B33113313132313113313223313331311331333132311331333133313113313221121   >>    B3311331313231311331322331333131133133313231133133313331311331322112   <<    B33113313132313113313223313331311331333132311331333133313113313221123   >>      B33113313132313113313223313331311331333132311331333133313113313221122   >>