an>
<span class="r-in"><span>  lowerbound <span class="op">=</span> <span class="fl">1</span>,</span></span>
<span class="r-in"><span>  upperbound <span class="op">=</span> <span class="fl">7</span>,</span></span>
<span class="r-in"><span>  items <span class="op">=</span> <span class="fl">6</span></span></span>
<span class="r-in"><span><span class="op">)</span></span></span>
<span class="r-msg co"><span class="r-pr">#&gt;</span> best solution in 1807 iterations</span>
<span class="r-in"><span></span></span>