Xiao Li's father is three times the age of Xiao Li this year. Five years ago, their ages were 28 years apart. Find the sum of their current ages.
小立的爸爸今年的年龄是小立的3倍．五年前，他们的年龄相差二十八岁，求他们现在年龄的总和．
<gadget id="calculator">28 - 5</gadget>
<output>23</output>

<gadget id="calculator">5 + 23</gadget>
<output>28</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">28 / 2</gadget>
<output>14</output>

<gadget id="calculator">14 * 3</gadget>
<output>42</output>

<gadget id="calculator">14 + 42</gadget>
<output>56</output>

<result>56</result>