
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
Movie tickets are available at two prices, 10 yuan and 20 yuan. The class monitor bought 30 movie tickets for 500 yuan, among which the number of tickets priced at 20 yuan is more than the number of tickets priced at 10 yuan by what amount?

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