346 young pioneers lined up in two columns to visit the art exhibition. The speed of the team is 23 meters per minute, and the distance between the two people in front is 1 meter. Now the team has to pass a 702-meter-long bridge. How many minutes does it take for the whole team to get on the bridge and leave the bridge?
少先队员346人排成两路纵队去参观画展．队伍行进的速度是23米/分，前面两人都相距1米．现在队伍要通过一座长702米的桥，整个队伍从上桥到离桥共需要几分钟？
<gadget id="calculator">346 / 2</gadget>
<output>173</output>

<gadget id="calculator">173 - 1</gadget>
<output>172</output>

<gadget id="calculator">1 * 172</gadget>
<output>172</output>

<gadget id="calculator">702 + 172</gadget>
<output>874</output>

<gadget id="calculator">874 / 23</gadget>
<output>38</output>

<result>38</result>