Cut a 100-meter-long rope into three sections. The second section is required to be 16 meters longer than the first section, and the third section is 18 meters shorter than the first section. What is the length of the third section?
把一条100米长的绳子剪成三段，要求第二段比第一段多16米，第三段比第一段少18米，第三段绳子长多少米．
<gadget id="calculator">100 - 16</gadget>
<output>84</output>

<gadget id="calculator">18 + 84</gadget>
<output>102</output>

<gadget id="calculator">1 + 1 + 1</gadget>
<output>3</output>

<gadget id="calculator">102 / 3</gadget>
<output>34</output>

<gadget id="calculator">34 - 18</gadget>
<output>16</output>

<result>16</result>