Xiao Li is going to the sixth floor. He walked 30 steps from the first floor to the fourth floor. According to this calculation, how many steps did Xiao Li walk to the sixth floor.
小李要去六楼，他从一楼到四楼走了30级台阶，照这样计算，小李到六楼走了多少级台阶．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<result>50</result>