7 students line up in a team, and the distance between two adjacent students is 1 meter, what is the length of the team?
7个同学排成一队，相邻俩同学之间的距离为1米，那么队伍长为多少．
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">6 * 1</gadget>
<output>6</output>

<result>6</result>