There are 23 stations on the whole line of Metro Line 9. If the subway takes an average of 3 minutes to go from one station to the next, the average stop time at each station is 1 minute. How long does it take for Metro Line 9 to arrive at the terminal station from the starting point?
地铁九号线全线共有23个站点，如果地铁从上一站到下一站平均要用3分钟，在每个站点停靠时间平均为1分钟．地铁九号线从起点开出，到达终点站共用多少分钟？
<gadget id="calculator">23 - 1</gadget>
<output>22</output>

<gadget id="calculator">22 * 3</gadget>
<output>66</output>

<gadget id="calculator">23 - 2</gadget>
<output>21</output>

<gadget id="calculator">21 * 1</gadget>
<output>21</output>

<gadget id="calculator">66 + 21</gadget>
<output>87</output>

<result>87</result>