column calculation. What is the sum of the product of 4 times 424 plus 143?
列式计算．4乘424的积加上143，和是多少？
<gadget id="calculator">4 * 424</gadget>
<output>1_696</output>

<gadget id="calculator">1_696 + 143</gadget>
<output>1_839</output>

<result>1_839</result>