C312312111111331312111133133313331322331333133313331333132213331121   >>    C31231211111133131211113313331333132233133313331333133313221333112   <<    C312312111111331312111133133313331322331333133313331333132213331123   >>      C312312111111331312111133133313331322331333133313331333132213331122   >>