There is a building with 17 floors high, and there are 17 steps between two adjacent floors. How many steps does a person have to climb from the first floor to the 11th floor?
有一幢楼房高17层，相邻两层间都有17个台阶，某人从第一层走到第11层，一共要登多少个台阶？
<gadget id="calculator">11 - 1</gadget>
<output>10</output>

<gadget id="calculator">17 * 10</gadget>
<output>170</output>

<result>170</result>