C11112331312111112111133133313331333133313331333133313311211111333131133221   >>    C1111233131211111211113313331333133313331333133313331331121111133313113322   <<    C11112331312111112111133133313331333133313331333133313311211111333131133223   >>      C11112331312111112111133133313331333133313331333133313311211111333131133222   >>