When a number is divided by 5, the quotient is 56, and the remainder is 3. What is the number?
一个数除以5，商56，余数是3，这个数是多少．
<gadget id="calculator">56 * 5</gadget>
<output>280</output>

<gadget id="calculator">280 + 3</gadget>
<output>283</output>

<result>283</result>