C31231211111133131211113313331333132233133313331312111133231323221   >>    C3123121111113313121111331333133313223313331333131211113323132322   <<    C31231211111133131211113313331333132233133313331312111133231323223   >>      C31231211111133131211113313331333132233133313331312111133231323222   >>