A total of 32 football teams participate in the competition. If the elimination system is adopted (that is, one team must be eliminated for each game), how many games will it take to produce a champion team.
一共有32支足球队参加比赛，如果采用淘汰制(即每赛一场就要淘汰1支球队)，一共要比赛多少场才能产生冠军队．
<gadget id="calculator">32 - 1</gadget>
<output>31</output>

<result>31</result>