<p>An attendance record for a student can be represented as a string where each character signifies whether the student was absent, late, or present on that day. The record only contains the following three characters:</p>
<ul>
<li><code>'A'</code>: Absent.</li>
<li><code>'L'</code>: Late.</li>
<li><code>'P'</code>: Present.</li>
</ul>
<p>Any student is eligible for an attendance award if they meet <strong>both</strong> of the following criteria:</p>
<ul>
<li>The student was absent (<code>'A'</code>) for <strong>strictly</strong> fewer than 2 days <strong>total</strong>.</li>
<li>The student was <strong>never</strong> late (<code>'L'</code>) for 3 or more <strong>consecutive</strong> days.</li>
</ul>
<p>Given an integer <code>n</code>, return <em>the <strong>number</strong> of possible attendance records of length</em><code>n</code><em> that make a student eligible for an attendance award. The answer may be very large, so return it <strong>modulo</strong></em><code>10<sup>9</sup> + 7</code>.</p>
