How much is the product of 39 times 48 plus the sum of 48 sums of 61?
39乘48的积加上48个61相加的和，得多少？
<gadget id="calculator">39 * 48</gadget>
<output>1_872</output>

<gadget id="calculator">61 * 48</gadget>
<output>2_928</output>

<gadget id="calculator">1_872 + 2_928</gadget>
<output>4_800</output>

<result>4_800</result>