C1311213331333132332133313331333133313331333312111133133313222233132222131   >>    C131121333133313233213331333133313331333133331211113313331322223313222213   <<    C1311213331333132332133313331333133313331333312111133133313222233132222133   >>      C1311213331333132332133313331333133313331333312111133133313222233132222132   >>