There are three trucks A, B, and C. Truck C has half the cargo of truck B. Truck B has 180 kg less cargo than truck A. Truck A has four times the cargo of truck C. How many kilograms of goods are loaded in two vehicles A and B?
有A、B、C三辆货车，C车装的货物是B车的一半，B车装的货物比A车少180千克，A车装的货物是C车的4倍．A、B两辆车共装货物多少千克．
<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">180 / 2</gadget>
<output>90</output>

<gadget id="calculator">90 * 2</gadget>
<output>180</output>

<gadget id="calculator">180 + 180 + 180</gadget>
<output>540</output>

<result>540</result>