C31231211113313121211113313331323133313231333133313331333132233131211   >>    C3123121111331312121111331333132313331323133313331333133313223313121   <<    C31231211113313121211113313331323133313231333133313331333132233131213   >>      C31231211113313121211113313331323133313231333133313331333132233131212   >>