
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
Uncle Li contracted 12 acres of rice fields, with a yield of 660 kilograms per acre. Aunt Lin contracted 2 acres less than Uncle Li, and the total rice yield of Aunt Lin is 420 kilograms less than that of Uncle Li. 
1. What is the total yield of Uncle Li's rice in kilograms?
2. How much less is the yield per acre of Uncle Li's rice compared to Aunt Lin's in kilograms?

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