C131121333133313233213331333133313331333133313133313331311211331312323231   >>    C13112133313331323321333133313331333133313331313331333131121133131232323   <<    C131121333133313233213331333133313331333133313133313331311211331312323233   >>      C131121333133313233213331333133313331333133313133313331311211331312323232   >>