There are 15 basketball representative teams, and each team is required to have a game, and finally see who wins the most. According to this game, how many games are there in total?
有15个蓝球代表队，要求每二队都要比赛一场，最后看谁胜得多．照这样比赛，比赛场数一共是多少场．
<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">15 * 7</gadget>
<output>105</output>

<result>105</result>