C31231211111133131211113313331333132233133313331333133313133313231323113231   >>    C3123121111113313121111331333133313223313331333133313331313331323132311323   <<    C31231211111133131211113313331333132233133313331333133313133313231323113233   >>      C31231211111133131211113313331333132233133313331333133313133313231323113232   >>