C131121333133313233213331333133313331333133313331333133313331333132321233221   >>    C13112133313331323321333133313331333133313331333133313331333133313232123322   <<    C131121333133313233213331333133313331333133313331333133313331333132321233223   >>      C131121333133313233213331333133313331333133313331333133313331333132321233222   >>