C131121333133313233213331333133313331312111133133313331311331322111   >>    C13112133313331323321333133313331333131211113313331333131133132211   <<    C131121333133313233213331333133313331312111133133313331311331322113   >>      C131121333133313233213331333133313331312111133133313331311331322112   >>