C3213322333133313113313221211113313331333133313231131131233231213121   >>    C321332233313331311331322121111331333133313331323113113123323121312   <<    C3213322333133313113313221211113313331333133313231131131233231213123   >>      C3213322333133313113313221211113313331333133313231131131233231213122   >>