It takes 36 days to process a batch of parts. Now A and B cooperate to complete the task in 20 days. At the end, it is found that A has processed 200 more parts than B. How many parts are there in total?
加工一批零件，甲独做用36天，现甲、乙两人合作20天完成任务，结束时发现甲正好比乙多加工了200个零件，这批零件共有多少个？
<gadget id="calculator">1 / 80</gadget>
<output>1/80 = around 0.0125</output>

<gadget id="calculator">10 / (1/80)</gadget>
<output>800</output>

<result>800</result>