
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
There are 24 banknotes in total, consisting of 10 yuan, 20 yuan, and 50 yuan denominations (at least one of each denomination), amounting to 1000 yuan in total. Determine the number of banknotes of the 20 yuan denomination.

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