C131121333133313233213331333133313331333132333133313331333112313221   >>    C13112133313331323321333133313331333133313233313331333133311231322   <<    C131121333133313233213331333133313331333132333133313331333112313223   >>      C131121333133313233213331333133313331333132333133313331333112313222   >>