C312312111111331312111133133313331331121111331333133313232131111   >>    C31231211111133131211113313331333133112111133133313331323213111   <<    C312312111111331312111133133313331331121111331333133313232131113   >>      C312312111111331312111133133313331331121111331333133313232131112   >>