C31231211113311331323133313331333133313331322131221333131323321   >>    C3123121111331133132313331333133313331333132213122133313132332   <<    C31231211113311331323133313331333133313331322131221333131323323   >>      C31231211113311331323133313331333133313331322131221333131323322   >>