
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 factory produces a type of product from three production lines: Line A, Line B, and Line C. To inspect the quality of these products, it is decided to use stratified sampling to sample 180 pieces. If the number of pieces sampled from Lines A, B, and C forms an arithmetic sequence, then find the number of pieces sampled from Line B.

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