"Vaska," "Vasque," and "Vussky," have the same code and are classified together.</p>

<h2 id="how-soundex-codes-are-generated">How Soundex codes are generated</h2>
<p>The Soundex algorithm operates on an input surname and converts the name into its Soundex code. A Soundex code is a four-character string in the form of an initial letter followed by three digits, such as <code class="language-c++ highlighter-rouge"><span class="n">Z452</span></code>. The initial letter is the first letter of the surname, and 