The school plans to distribute 15 pencils to each student who participated in the long-distance running as a souvenir. But four people didn't come that day, and each person gave out 2 more pencils, leaving 6 pencils. How many pencils are there in total?
学校准备给参加长跑的同学每人发15支铅笔做纪念．但这天有四人没来，结果每人多发了2支，还剩6支，这些铅笔一共多少支．
<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<gadget id="calculator">60 - 6</gadget>
<output>54</output>

<gadget id="calculator">54 / 2</gadget>
<output>27</output>

<gadget id="calculator">15 + 2</gadget>
<output>17</output>

<gadget id="calculator">27 * 17</gadget>
<output>459</output>

<gadget id="calculator">459 + 6</gadget>
<output>465</output>

<result>465</result>