C31231211113313121211113313331323133313231333133313331333232233121   >>    C3123121111331312121111331333132313331323133313331333133323223312   <<    C31231211113313121211113313331323133313231333133313331333232233123   >>      C31231211113313121211113313331323133313231333133313331333232233122   >>