Xiao Ming is 118 cm tall and Xiao Hong is 131 cm tall. How many centimeters is Xiao Ming shorter than Xiao Hong?
小明身高118厘米，小红身高131厘米，小明比小红矮多少厘米．
<gadget id="calculator">131 - 118</gadget>
<output>13</output>

<result>13</result>