C131121333133313233213331333133313331333133313331333131231113321   >>    C13112133313331323321333133313331333133313331333133313123111332   <<    C131121333133313233213331333133313331333133313331333131231113323   >>      C131121333133313233213331333133313331333133313331333131231113322   >>