C11111333133313232233133313331333133112111112113313331311331213221   >>    C1111133313331323223313331333133313311211111211331333131133121322   <<    C11111333133313232233133313331333133112111112113313331311331213223   >>      C11111333133313232233133313331333133112111112113313331311331213222   >>