C31231211113313112133313331311331333133313331333132322121133231   >>    C3123121111331311213331333131133133313331333133313232212113323   <<    C31231211113313112133313331311331333133313331333132322121133233   >>      C31231211113313112133313331311331333133313331333132322121133232   >>