C31231211113313121211113313331323133313231133133313331333133112213221211   >>    C3123121111331312121111331333132313331323113313331333133313311221322121   <<    C31231211113313121211113313331323133313231133133313331333133112213221213   >>      C31231211113313121211113313331323133313231133133313331333133112213221212   >>