Children line up in two rows to do morning exercises, with one person standing 0.8 meters apart in each row. Given that the queue is 13.6 meters long, how many children are there in total?
小朋友排成两行做早操，每行隔0.8米站1个人．已知队列长13.6米，共有多少个小朋友？
<gadget id="calculator">13.6 / 0.8</gadget>
<output>17</output>

<gadget id="calculator">17 + 1</gadget>
<output>18</output>

<gadget id="calculator">18 * 2</gadget>
<output>36</output>

<result>36</result>