C111113331333132322331333133313331311331313311211113313113312121   >>    C11111333133313232233133313331333131133131331121111331311331212   <<    C111113331333132322331333133313331311331313311211113313113312123   >>      C111113331333132322331333133313331311331313311211113313113312122   >>