One factor is 77 and the other factor is 3 more than it. What is the product of them?
一个因数是77，另一个因数比它多3，它们的积是多少？
<gadget id="calculator">77 + 3</gadget>
<output>80</output>

<gadget id="calculator">77 * 80</gadget>
<output>6_160</output>

<result>6_160</result>