C131121333133313233213331333133313331333133313133313223313111121133131333131   >>    C13112133313331323321333133313331333133313331313331322331311112113313133313   <<    C131121333133313233213331333133313331333133313133313223313111121133131333133   >>      C131121333133313233213331333133313331333133313133313223313111121133131333132   >>