There are 216 books in two shelves. After removing 42 books from the first floor, there are 6 more books on the second floor than on the first floor. How many books are there on the second floor?
有两层书架共有书216本，从第一层拿走42本后，第二层的书比第一层的2倍还多6本，则第二层有多少本书？
<gadget id="calculator">216 - 6 - 42</gadget>
<output>168</output>

<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">168 / 3</gadget>
<output>56</output>

<gadget id="calculator">56 * 2</gadget>
<output>112</output>

<gadget id="calculator">112 + 6</gadget>
<output>118</output>

<result>118</result>