C131121333133313233213331333133313331312111133133313331333133313331323222331121   >>    C13112133313331323321333133313331333131211113313331333133313331333132322233112   <<    C131121333133313233213331333133313331312111133133313331333133313331323222331123   >>      C131121333133313233213331333133313331312111133133313331333133313331323222331122   >>