C31231211113313121211113313331323133313231133133313331333132321233211   >>    C3123121111331312121111331333132313331323113313331333133313232123321   <<    C31231211113313121211113313331323133313231133133313331333132321233213   >>      C31231211113313121211113313331323133313231133133313331333132321233212   >>