
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
Citizen Sidorov has exactly enough money to buy a ton of round cookies and a ton of fluffy biscuits. If he buys 20% more round cookies, he will be given a 40% discount on the fluffy biscuits, and the remaining money will be enough to buy a ton of fluffy biscuits. If he buys 40% more fluffy biscuits, he will receive a 20% discount on round cookies, and the remaining money will also be enough to buy a ton of round cookies. Which is more expensive and by how much: a ton of round cookies or a ton of fluffy biscuits? (In both cases, it is not necessary to spend all the money).

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