C3123121111331311213331333131133133313331333133313331331122132332211   >>    C312312111133131121333133313113313331333133313331333133112213233221   <<    C3123121111331311213331333131133133313331333133313331331122132332213   >>      C3123121111331311213331333131133133313331333133313331331122132332212   >>