When a number is divided by 4, the quotient is 8 and the remainder is 1. What is the number?
一个数除以4，商是8，余数是1，这个数是多少．
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">32 + 1</gadget>
<output>33</output>

<result>33</result>