There are 8 classes in the middle school of Licai Chinese and English School. For a basketball game, if the championship and runner-up are determined by knockout, how many games will there be in total?
立才中英文学校中学部有8个班级，一次篮球比赛，如果采取淘汰赛决出冠军、亚军，一共要比赛多少场．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

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

<gadget id="calculator">4 + 2 + 1</gadget>
<output>7</output>

<result>7</result>