\begin{tikzpicture}[grow=right, growth parent anchor=east, child anchor=west, level 1/.style={level distance=20mm, sibling distance=20mm},level2/.style={level distance=20mm, sibling distance=20mm},level3/.style={level distance=20mm, sibling distance=20mm},]

        \node{$X$}

            child{node {$B$}

                child{node {$BB$\\$bb$}}

                child{node {$AB$}}}

            child{node {$A$}

                child{node {$AB$}}

                child{node {$AA$}}};

\end{tikzpicture}

해당 내용을 아래 첨부된 내용처럼 바꾸려면 어떻게 해야하나요...