C31231211111133131211113313331333133313331323223313331333133313331323131331231   >>    C3123121111113313121111331333133313331333132322331333133313331333132313133123   <<    C31231211111133131211113313331333133313331323223313331333133313331323131331233   >>      C31231211111133131211113313331333133313331323223313331333133313331323131331232   >>