There are three sets of numbers A, B, and C, A={1, 3, 5, 7}, B={2, 4, 6}, C={9, 11}. Take one number from each group and multiply them together to get a product. What is the sum of these 24 products.
有A、B、C三组数，A={1，3，5，7}，B={2，4，6}，C={9，11}．从每一组中各取出一个数，相乘得到一个积．这24个乘积的总和是多少．
<gadget id="calculator">1 + 3 + 5 + 7</gadget>
<output>16</output>

<gadget id="calculator">2 + 4 + 6</gadget>
<output>12</output>

<gadget id="calculator">9 + 11</gadget>
<output>20</output>

<gadget id="calculator">16 * 12 * 20</gadget>
<output>3_840</output>

<result>3_840</result>