
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
There are two piles of apples. After moving 2 apples from the first pile to the second pile, the number of apples in the second pile is exactly twice the number of apples in the first pile. If the first pile originally had $a$ apples, then the second pile originally had $\_\_\_$ apples.

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