The naughty parents deposit 3,500 yuan in the bank, deposit and withdraw for three years, and calculate the annual interest rate at 3.33%. How much will the principal and interest total after three years?
淘气的父母将3500元钱存入银行，整存整取三年，年利率按3.33%计算，三年后本金和利息共有多少元？
<gadget id="calculator">3.33 / 100</gadget>
<output>0.0333</output>

<gadget id="calculator">3_500 * 0.0333 * 3</gadget>
<output>349.65</output>

<gadget id="calculator">3_500 + 349.65</gadget>
<output>3_849.65</output>

<result>3_849.65</result>