C1311213331333132332133313331333133313331333133313331333133313332212121121   >>    C131121333133313233213331333133313331333133313331333133313331333221212112   <<    C1311213331333132332133313331333133313331333133313331333133313332212121123   >>      C1311213331333132332133313331333133313331333133313331333133313332212121122   >>