The little white rabbit picks 22 mushrooms and the little gray rabbit picks 14 mushrooms. If the little white rabbit has twice as many mushrooms as the little gray rabbit, how many mushrooms should the little gray rabbit give the little white rabbit?
小白兔采蘑菇22个小灰兔采蘑菇14个，要使小白兔的蘑菇个数比小灰兔多2倍，小灰兔要给小白兔多少个蘑菇？
<gadget id="calculator">14 * 2</gadget>
<output>28</output>

<gadget id="calculator">14 - 22</gadget>
<output>-8</output>

<gadget id="calculator">28 + (-8)</gadget>
<output>20</output>

<gadget id="calculator">1 + 2 + 1</gadget>
<output>4</output>

<gadget id="calculator">20 / 4</gadget>
<output>5</output>

<result>5</result>