
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
The first three terms of an arithmetic sequence are 3, 15, and 27, respectively. Find the value of the 15th term if the common difference is multiplied by 2.

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