C31231211111133131211113313331333133112111133232133313232211211322331   >>    C3123121111113313121111331333133313311211113323213331323221121132233   <<    C31231211111133131211113313331333133112111133232133313232211211322333   >>      C31231211111133131211113313331333133112111133232133313232211211322332   >>