 2L 3L)|</span>
<span class="r-in"><span><span class="va">d2</span> <span class="op">-</span> <span class="va">d</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> |0|</span>
<span class="r-in"><span><span class="co"># Math</span></span></span>
<span class="r-in"><span><span class="va">d</span> <span class="op">=</span> <span class="fu">deque</span><span class="op">(</span><span class="fl">1</span>, <span class="fl">2</span>, <span class="op">-</span><span class="op">(</span><span c