<p>In a string composed of <code>'L'</code>, <code>'R'</code>, and <code>'X'</code> characters, like <code>"RXXLRXRXL"</code>, a move consists of either replacing one occurrence of <code>"XL"</code> with <code>"LX"</code>, or replacing one occurrence of <code>"RX"</code> with <code>"XR"</code>. Given the starting string <code>start</code> and the ending string <code>end</code>, return <code>True</code> if and only if there exists a sequence of moves to transform one string to the other.</p>
<li>Both <code>start</code> and <code>end</code> will only consist of characters in <code>'L'</code>, <code>'R'</code>, and <code>'X'</code>.</li>
