Insert a bamboo pole vertically into the bottom of the water. The bamboo pole is 30 cm wet. Then turn the bamboo pole upside down and insert it into the water bottom. At this time, the wet part of the bamboo pole is 18 cm longer than its full length (1/3). Find the total length of the bamboo pole in centimeters ?
把一根竹竿垂直插入水底，竹竿湿了30厘米，然后将竹竿倒过来插入水底，这时竹竿湿的部分比它全长的(1/3)长18厘米，求竹竿的全长是多少厘米？
<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">60 - 18</gadget>
<output>42</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">42 / (1/3)</gadget>
<output>126</output>

<result>126</result>