Class 3 and 7 donated 406 yuan to the orphanage. Class 3 and 4 donated 14 yuan less than Class 3 and 7. How much did the two classes donate in total?
三7班为福利院捐款406元，三4班比三7班少捐14元，两个班一共捐了多少元？
<gadget id="calculator">406 - 14</gadget>
<output>392</output>

<gadget id="calculator">392 + 406</gadget>
<output>798</output>

<result>798</result>