C31231211113313121211113313331323133313331333133313311232313232131   >>    C3123121111331312121111331333132313331333133313331331123231323213   <<    C31231211113313121211113313331323133313331333133313311232313232133   >>      C31231211113313121211113313331323133313331333133313311232313232132   >>