C1111121111331311211331333133313331323131133133313232133313222211   >>    C111112111133131121133133313331333132313113313331323213331322221   <<    C1111121111331311211331333133313331323131133133313232133313222213   >>      C1111121111331311211331333133313331323131133133313232133313222212   >>