C31231211111133131211113313331333133112111133133313331122322331333133322123221   >>    C3123121111113313121111331333133313311211113313331333112232233133313332212322   <<    C31231211111133131211113313331333133112111133133313331122322331333133322123223   >>      C31231211111133131211113313331333133112111133133313331122322331333133322123222   >>