There are more than 400 balls in the two boxes of A and B. If you take x balls from A to B, A will be less than B (6/19); if you take x balls from B to A, B Less than A (6/17). How many balls did the original box contain?
甲、乙两个盒子里共装了400多个球，如果从甲中拿出x个到乙，甲比乙就少了(6/19)；如果从乙中拿出x个到甲，乙比甲少了(6/17)．原来甲盒装了多少个球？
<gadget id="calculator">13 + 19</gadget>
<output>32</output>

<gadget id="calculator">13 / 32</gadget>
<output>13/32 = around 0.40625</output>

<gadget id="calculator">224 * 2 * (13/32)</gadget>
<output>182</output>

<gadget id="calculator">11 + 17</gadget>
<output>28</output>

<gadget id="calculator">17 / 28</gadget>
<output>17/28 = around 0.607143</output>

<gadget id="calculator">224 * 2 * (17/28)</gadget>
<output>272</output>

<gadget id="calculator">182 + 272</gadget>
<output>454</output>

<gadget id="calculator">454 / 2</gadget>
<output>227</output>

<result>227</result>