There are 5 Japanese companies, 6 British companies, and 7 Chinese companies in an international conference to discuss trade. They all want to have a separate negotiation with each company in a foreign country, and ask for how many meetings to arrange.
某国际会议洽谈贸易，有5家日本公司，6家英国公司，7家中国公司，彼此都希望与异国的每个公司单独洽谈一次，要求安排多少次会谈场次．
<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<gadget id="calculator">7 * 6</gadget>
<output>42</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">35 + 42 + 30</gadget>
<output>107</output>

<result>107</result>