C131121333133313233213331333133313331333133313331333133313231123313233231   >>    C13112133313331323321333133313331333133313331333133313331323112331323323   <<    C131121333133313233213331333133313331333133313331333133313231123313233233   >>      C131121333133313233213331333133313331333133313331333133313231123313233232   >>