C11112331312111112111133133313331333133313331333133313331333131133131323132211   >>    C1111233131211111211113313331333133313331333133313331333133313113313132313221   <<    C11112331312111112111133133313331333133313331333133313331333131133131323132213   >>      C11112331312111112111133133313331333133313331333133313331333131133131323132212   >>