total of 272 students in the third grade line up to do exercises, with 16 people in each row, and the distance between every two rows is 2 meters. So how many meters does the playground need to be at least to accommodate the students in the third grade? (The width occupied by classmates is ignored)
三年级共有同学272人排队做操，每排16人，其中每两排之间间隔2米，那么操场至少需要多少米长才能容纳得下三年级的同学？(同学所占的宽度忽略不计)
<gadget id="calculator">272 / 16</gadget>
<output>17</output>

<gadget id="calculator">17 - 1</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<result>32</result>