
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
John borrows $15$ dollars from Clara with a simple interest rate of $10\%$ per day. However, the interest starts accumulating only after the first 3 days. What is the least integer number of days after which John will have to pay her back at least twice as much as he borrowed?

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