There are 25 football teams holding a football match, using the elimination system to win the championship, how many games will be played in total.
有25支足球队举行足球比赛，采用淘汰制，得出冠军，共要进行多少场比赛．
<gadget id="calculator">12 + 6 + 3 + 2 + 1</gadget>
<output>24</output>

<result>24</result>