Ding Ding's mother deposits 5,000 yuan in the bank for 3 years, with an annual interest rate of 5.40%. How much can Ding Ding's mother get back the principal and interest when it expires?
丁丁的妈妈把5000元钱存入银行，整存整取3年，年利率5.40%．到期时丁丁的妈妈可以取回本金和利息一共多少元．
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

<gadget id="calculator">5_000 * 0.054 * 3</gadget>
<output>810</output>

<gadget id="calculator">810 + 4_000</gadget>
<output>4_810</output>

<result>4_810</result>