C11112331312111112111133133313331333132323213331333133112313331123313122131121   >>    C1111233131211111211113313331333133313232321333133313311231333112331312213112   <<    C11112331312111112111133133313331333132323213331333133112313331123313122131123   >>      C11112331312111112111133133313331333132323213331333133112313331123313122131122   >>