
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
"The green mountains and clear waters are as valuable as mountains of gold and silver." Scientific research shows that the secretion produced by leaves after photosynthesis can adsorb suspended particles in the air, playing a role in dust retention and air purification. It is known that the average dust retention of a ginkgo leaf in a year is $4mg$ less than twice the average dust retention of a locust leaf in a year. If the total average dust retention of a locust leaf and a ginkgo leaf in a year is $62mg$. <br/>$(1)$ Please calculate the average dust retention of a locust leaf and a ginkgo leaf in a year respectively; <br/>$(2)$ In a certain area of Jiufeng Mountain Forest Park in Shuangfeng County, Loudi City, there are three ginkgo trees dating back to the Tang Dynasty, with an estimated total of about 50,000 leaves. How much is the total average dust retention of these three ginkgo trees in kilograms in a year?

Present the answer in LaTex format: \boxed{Your answer}
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