Uncle Li bought three-year government bonds with 20,000 yuan. Assuming that the annual interest rate is 3.69%, what is the total amount of principal and interest that Uncle Li can take after maturity?
李叔叔用20000元购买了三年期国债，假定年利率是3.69%，到期后李叔叔可取本金和利息共多少？
<gadget id="calculator">3.69 / 100</gadget>
<output>0.0369</output>

<gadget id="calculator">20_000 * 0.0369 * 3</gadget>
<output>2_214</output>

<gadget id="calculator">20_000 + 2_214</gadget>
<output>22_214</output>

<result>22_214</result>