C31231211111133131211113313331333132233133313331312111133133311233131211   >>    C3123121111113313121111331333133313223313331333131211113313331123313121   <<    C31231211111133131211113313331333132233133313331312111133133311233131213   >>      C31231211111133131211113313331333132233133313331312111133133311233131212   >>