There are 600 grams of fruit juice in bottle A and 1 kg of fruit juice in bottle B. If how many grams of fruit juice in bottle B are poured into bottle A, there will be the same amount of fruit juice in both bottles.
甲瓶中有果汁600克，乙瓶中有果汁1千克，如果将乙瓶中的多少克果汁倒入甲瓶，两瓶果汁同样多．
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 - 600</gadget>
<output>400</output>

<gadget id="calculator">400 / 2</gadget>
<output>200</output>

<result>200</result>