Xiaoqiang is 11 years old this year, and his father is 4 years older than 3 times his age. How old is dad this year?
小强今年11岁，爸爸的年龄比他的3倍还多4岁．爸爸今年几岁？
<gadget id="calculator">11 * 3</gadget>
<output>33</output>

<gadget id="calculator">33 + 4</gadget>
<output>37</output>

<result>37</result>