Xiao Ming is 9 years old this year, and his father's age is three times that of Xiao Ming's, which is 6 years old. How old is his father this year?
小明今年9岁，爸爸的岁数是小明的3倍多6岁，爸爸今年多少岁．
<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<gadget id="calculator">27 + 6</gadget>
<output>33</output>

<result>33</result>