The primary school attached to the National People’s Congress organizes students to go on a spring outing. The speed of the team is 2 meters per second. Teacher Song runs from the end of the team to the head of the team at a speed of 4 meters per second, and then back to the back of the team. Question: What is the total length of the team?
人大附小组织学生去春游，队伍行进的速度是每秒2米，宋老师以每秒4米的速度从队尾跑到队头，再回到队尾，共用6分钟．请问：队伍的总长是多少米？
<gadget id="calculator">360 * 4 * 4</gadget>
<output>5_760</output>

<gadget id="calculator">360 * 4 * 2</gadget>
<output>2_880</output>

<gadget id="calculator">360 * 2 * 4</gadget>
<output>2_880</output>

<gadget id="calculator">360 * 2 * 2</gadget>
<output>1_440</output>

<gadget id="calculator">2_880 - 2_880 - 1_440</gadget>
<output>-1_440</output>

<gadget id="calculator">5_760 + (-1_440)</gadget>
<output>4_320</output>

<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">4 + 2 + 2</gadget>
<output>8</output>

<gadget id="calculator">4_320 / 8</gadget>
<output>540</output>

<result>540</result>