In 2011, Guangming Village will build two fish ponds, and plans to borrow 20,000 yuan from the bank, which will be repaid in one lump sum after three years (the annual interest rate of economic development loans for old, young, frontier and poor areas is 3.18% as stipulated by the state). How much should the village repay after three years?
2011年光明村要建两个养鱼池，准备向银行贷款2万元，三年后一次还清(国家规定，老少边穷地区发展经济贷款的年利率为3.18%)．三年后这个村应还款多少元？
<gadget id="calculator">2 * 10_000</gadget>
<output>20_000</output>

<gadget id="calculator">3.18 / 100</gadget>
<output>0.0318</output>

<gadget id="calculator">20_000 * 0.0318 * 3</gadget>
<output>1_908</output>

<gadget id="calculator">20_000 + 1_908</gadget>
<output>21_908</output>

<result>21_908</result>