C3123121111331312121111331333133313331331121133133313331121133133313232111221   >>    C312312111133131212111133133313331333133112113313331333112113313331323211122   <<    C3123121111331312121111331333133313331331121133133313331121133133313232111223   >>      C3123121111331312121111331333133313331331121133133313331121133133313232111222   >>