C131121333133313233213331333133313331333133313331333133311322321322321   >>    C13112133313331323321333133313331333133313331333133313331132232132232   <<    C131121333133313233213331333133313331333133313331333133311322321322323   >>      C131121333133313233213331333133313331333133313331333133311322321322322   >>