4 people play mahjong, one of them is the boss, and they have to draw 40 yuan tea money. In the end, 1 person won 60 yuan, and 2 people lost 10 yuan each. How much did the boss lose?
4个人打麻将，其中1个是老板，要抽40元茶钱．最后，有1人赢了60元，有2人各输了10元．请问老板输了多少钱？
<gadget id="calculator">60 - 10 - 10</gadget>
<output>40</output>

<gadget id="calculator">40 + 40</gadget>
<output>80</output>

<result>80</result>