The average height of Wang Jing, Wu Lan and Zhou Jia is 158cm. Wu Lan is 155cm tall, Wang Jing is 160cm tall, and Zhou Jia is 155cm tall.
王菁、吴兰、周佳三人的平均身高是158cm．吴兰身高155cm，王菁身160cm，周佳身高多少cm．
<gadget id="calculator">158 * 3</gadget>
<output>474</output>

<gadget id="calculator">474 - 155 - 160</gadget>
<output>159</output>

<result>159</result>