The naughty house lives on the 7th floor, and there are 18 steps between each floor. How many steps does Naughty climb from the 1st floor to the 7th floor?
淘气家住在7楼，每层楼之间的台阶有18级．淘气从1楼爬到7楼，要走多少级台阶？
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

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

<result>108</result>