C131121333133313233213331333133313331333133313133313331311222223321   >>    C13112133313331323321333133313331333133313331313331333131122222332   <<    C131121333133313233213331333133313331333133313133313331311222223323   >>      C131121333133313233213331333133313331333133313133313331311222223322   >>