Xiao Ming's family lives on the third floor of a high-rise building, and Xiao Lan's family also lives in the same unit, and the floor where they live is three times the height of the floor where Xiao Ming's house is located. It is known that there are 18 steps between every two adjacent floors of this building. How many steps do you need to walk from the floor of Xiaoming's house to the floor of Xiaolan's house?
小明家住在一幢高层楼房三楼，小兰家也住在同一单元，所在楼层是小明家所在楼层高度的3倍．已知这幢楼房每相邻两层间都是18层台阶，从小明家所在楼层到小兰家所在楼层要走多少级台阶．
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">9 - 3</gadget>
<output>6</output>

<gadget id="calculator">6 * 18</gadget>
<output>108</output>

<result>108</result>