  summary  cost</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   <span style="color: #949494; font-style: italic;">&lt;chr&gt;</span>   <span style="color: #949494; font-style: italic;">&lt;dbl&gt;</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> <span style="color: #BCBCBC;">1</span> overall <span style="text-decoration: underline;">1</span>793.</span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># manually calculate cost of the soluti