C31231211113313121211113313331323133313331333133311213231322121   >>    C3123121111331312121111331333132313331333133313331121323132212   <<    C31231211113313121211113313331323133313331333133311213231322123   >>      C31231211113313121211113313331323133313331333133311213231322122   >>