Little Koizumi and Little Ou each have some Olympic commemorative coins. The number of Little Ou is 4 more than 3 times that of Little Koizumi, and 14 less than 5 times that of Little Koizumi. So, how many more Olympic commemorative coins does Little Ou have than Little Koizumi?
小小泉与小小欧各有一些奥运纪念币．小小欧的个数比小小泉的3倍多4个，比小小泉的5倍少14个．那么，小小欧比小小泉多多少个奥运纪念币．
<gadget id="calculator">3 * 9</gadget>
<output>27</output>

<gadget id="calculator">27 + 4</gadget>
<output>31</output>

<gadget id="calculator">31 - 9</gadget>
<output>22</output>

<result>22</result>