
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
In a five-digit number, each digit is different and not zero, and the number formed by the last three digits is seven times the number formed by the first three digits. What is this five-digit number?

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