When two numbers are divided, the quotient is 12 and the remainder is 3. What is the smallest divisor?
两数相除，商是12，余数是3，被除数最小是多少．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<gadget id="calculator">48 + 3</gadget>
<output>51</output>

<result>51</result>