Xiaoqiang's height is 143cm, and he is 170mm shorter than his father standing on a 20cm stool. How tall is Xiaoqiang's father?
小强的身高是143厘米，站在20厘米的凳子上比爸爸还矮170毫米，请问小强的爸爸有多高？
<gadget id="calculator">170 / 10</gadget>
<output>17</output>

<gadget id="calculator">143 + 20 + 17</gadget>
<output>180</output>

<result>180</result>