A seven-story building has 16 stairs on each floor. How many steps does Xiao Ding need to walk from the 1st floor to the 7th floor?
一幢七层楼，每层楼梯有16级，小丁从1楼到7楼，共要走多少级．
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">16 * 6</gadget>
<output>96</output>

<result>96</result>