Xiaomin is 110 cm tall, Xiao Hong is 140 cm tall, how many centimeters is Xiaomin shorter than Xiao Hong?
小民身高110厘米，小红身高140厘米，小民比小红矮多少厘米．
<gadget id="calculator">140 - 110</gadget>
<output>30</output>

<result>30</result>