
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
A positive integer is thought of. The digit 7 is appended to the end of this number, and from the resulting new number, the square of the original number is subtracted. The remainder is then reduced by 75% of this remainder and the original number is subtracted again. The final result is zero. What number was thought of?

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