C131121333133313233213331333133313331333133313133313331311222132312111   >>    C13112133313331323321333133313331333133313331313331333131122213231211   <<    C131121333133313233213331333133313331333133313133313331311222132312113   >>      C131121333133313233213331333133313331333133313133313331311222132312112   >>