C31231211111133131211113313331333132233133313331333132233132321111   >>    C3123121111113313121111331333133313223313331333133313223313232111   <<    C31231211111133131211113313331333132233133313331333132233132321113   >>      C31231211111133131211113313331333132233133313331333132233132321112   >>