Lin Ling practiced race walking. At the beginning, she walked 30 meters per minute. From the 4th minute, she started to speed up, and every minute she walked 3 meters more than the previous minute. After the 5th minute, how many meters did she walk in total? ．
林玲同学练习竞走，开始时她每分钟走30米，从第4分钟起，她开始加速，每分钟都比前一分钟多走3米，则到第5分钟后，她一共走了多少米．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">30 * 3</gadget>
<output>90</output>

<gadget id="calculator">30 + 3</gadget>
<output>33</output>

<gadget id="calculator">30 + 3 + 3</gadget>
<output>36</output>

<gadget id="calculator">90 + 33 + 36</gadget>
<output>159</output>

<result>159</result>