d</code>: reads an optionally signed decimal integer (<code class="code">0-9</code>+).</li>
<li><code class="code">i</code>: reads an optionally signed integer
      (usual input conventions for decimal (<code class="code">0-9</code>+), hexadecimal
       (<code class="code">0x[0-9a-f]+</code> and <code class="code">0<span class="constructor">X</span>[0-9<span class="constructor">A</span>-<span class="constructor">F</span>]+</code>), octal (<code class="code">0o[0-7]+</code>), and binary
       (<code class