C3123121111331312121111331333133313331331121133133313331333131133132233131221   >>    C312312111133131212111133133313331333133112113313331333133313113313223313122   <<    C3123121111331312121111331333133313331331121133133313331333131133132233131223   >>      C3123121111331312121111331333133313331331121133133313331333131133132233131222   >>