
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 stack of logs begins with 5 logs in the top row, with each succeeding lower row containing one more log than the one above, finishing with 15 logs in the bottom row. How many logs are in the stack?

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