C131121333133313233213331333133313331312111133133313331333133313231323323321   >>    C13112133313331323321333133313331333131211113313331333133313331323132332332   <<    C131121333133313233213331333133313331312111133133313331333133313231323323323   >>      C131121333133313233213331333133313331312111133133313331333133313231323323322   >>