<p>Given a <strong>non-negative</strong> integer <code>num</code>, return <code>true</code><em> if </em><code>num</code><em> can be expressed as the sum of any <strong>non-negative</strong> integer and its reverse, or </em><code>false</code><em> otherwise.</em></p> <p> </p> <p><strong class="example">Example 1:</strong></p> <pre> <strong>Input:</strong> num = 443 <strong>Output:</strong> true <strong>Explanation:</strong> 172 + 271 = 443 so we return true. </pre> <p><strong class="example">Example 2:</strong></p> <pre> <strong>Input:</strong> num = 63 <strong>Output:</strong> false <strong>Explanation:</strong> 63 cannot be expressed as the sum of a non-negative integer and its reverse so we return false. </pre> <p><strong class="example">Example 3:</strong></p> <pre> <strong>Input:</strong> num = 181 <strong>Output:</strong> true <strong>Explanation:</strong> 140 + 041 = 181 so we return true. Note that when a number is reversed, there may be leading zeros. </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>0 <= num <= 10<sup>5</sup></code></li> </ul>