Xiaoming's house is on the fourth floor, and it takes 11 seconds to go up each floor. How many seconds does it take him to go from the first floor to the sixth floor?
小明家在四楼，每上一层楼用11秒，他从一楼到六楼共需要多少秒．
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">11 * 5</gadget>
<output>55</output>

<result>55</result>