C31231211111133131211113313331333132233133313331333132233132322123232311   >>    C3123121111113313121111331333133313223313331333133313223313232212323231   <<    C31231211111133131211113313331333132233133313331333132233132322123232313   >>      C31231211111133131211113313331333132233133313331333132233132322123232312   >>