There are 8 steps from the first floor to the second floor. Xiao Wu can take one or two steps in one step. How many different ways does he go from the first floor to the second floor?
从一楼到二楼共有8级台阶，小吴一步可跨1级或2级台阶，他从一楼上到二楼一共有多少种不同的走法？
<gadget id="calculator">1 + 2 + 2 + 1 + 2 + 2 + 1 + 2 + 1 + 2 + 2 + 1 + 2 + 2 + 1 + 2 + 1 + 2 + 2 + 1 + 2</gadget>
<output>34</output>

<result>34</result>