C3213322333133313113313221211113313331333133313112212132112212131   >>    C321332233313331311331322121111331333133313331311221213211221213   <<    C3213322333133313113313221211113313331333133313112212132112212133   >>      C3213322333133313113313221211113313331333133313112212132112212132   >>