C3123121111331312121111331333133313331331121133133313331333131133133322331221   >>    C312312111133131212111133133313331333133112113313331333133313113313332233122   <<    C3123121111331312121111331333133313331331121133133313331333131133133322331223   >>      C3123121111331312121111331333133313331331121133133313331333131133133322331222   >>