<p>You are given two strings order and s. All the characters of <code>order</code> are <strong>unique</strong> and were sorted in some custom order previously.</p>

<p>Permute the characters of <code>s</code> so that they match the order that <code>order</code> was sorted. More specifically, if a character <code>x</code> occurs before a character <code>y</code> in <code>order</code>, then <code>x</code> should occur before <code>y</code> in the permuted string.</p>

<p>Return <em>any permutation of </em><code>s</code><em> that satisfies this property</em>.</p>

<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>

<pre>
<strong>Input:</strong> order = &quot;cba&quot;, s = &quot;abcd&quot;
<strong>Output:</strong> &quot;cbad&quot;
<strong>Explanation:</strong> 
&quot;a&quot;, &quot;b&quot;, &quot;c&quot; appear in order, so the order of &quot;a&quot;, &quot;b&quot;, &quot;c&quot; should be &quot;c&quot;, &quot;b&quot;, and &quot;a&quot;. 
Since &quot;d&quot; does not appear in order, it can be at any position in the returned string. &quot;dcba&quot;, &quot;cdba&quot;, &quot;cbda&quot; are also valid outputs.
</pre>

<p><strong class="example">Example 2:</strong></p>

<pre>
<strong>Input:</strong> order = &quot;cbafg&quot;, s = &quot;abcd&quot;
<strong>Output:</strong> &quot;cbad&quot;
</pre>

<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>1 &lt;= order.length &lt;= 26</code></li>
	<li><code>1 &lt;= s.length &lt;= 200</code></li>
	<li><code>order</code> and <code>s</code> consist of lowercase English letters.</li>
	<li>All the characters of <code>order</code> are <strong>unique</strong>.</li>
</ul>