Zhang Qin's family bought 4,000 yuan of national construction bonds, fixed for five years. If the annual interest rate is 3.14%, how much will he get in total for the principal and interest when it matures?
张琴家买了4000元的国家建设债券，定期五年，如果年利率是3.14%，到期时，他可以得到本金和利息一共是多少元？
<gadget id="calculator">3.14 / 100</gadget>
<output>0.0314</output>

<gadget id="calculator">4_000 * 0.0314 * 5</gadget>
<output>628</output>

<gadget id="calculator">4_000 + 628</gadget>
<output>4_628</output>

<result>4_628</result>