In 2014, the water storage capacity of Mudanjiang Reservoir reached 29 billion cubic meters, 400 million cubic meters more than 26 times that of Miyun Reservoir in Beijing. What is the water storage capacity of Miyun Reservoir?
2014年牡丹江水库蓄水量达290亿立方米，比北京密云水库蓄水量的26倍还多4亿立方米．密云水库蓄水量是多少？
<gadget id="calculator">290 - 4</gadget>
<output>286</output>

<gadget id="calculator">286 / 26</gadget>
<output>11</output>

<result>11</result>