C131121333133313233213331333133313331333132333133313331312312331   >>    C13112133313331323321333133313331333133313233313331333131231233   <<    C131121333133313233213331333133313331333132333133313331312312333   >>      C131121333133313233213331333133313331333132333133313331312312332   >>