C31231211113313121211113313331323133313331333132213331323221221   >>    C3123121111331312121111331333132313331333133313221333132322122   <<    C31231211113313121211113313331323133313331333132213331323221223   >>      C31231211113313121211113313331323133313331333132213331323221222   >>