C131121333133313233213331333133313331333133313331333133313331333133322331313331   >>    C13112133313331323321333133313331333133313331333133313331333133313332233131333   <<    C131121333133313233213331333133313331333133313331333133313331333133322331313333   >>      C131121333133313233213331333133313331333133313331333133313331333133322331313332   >>