
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
In a row of wooden compartments containing several small balls, two players, A and B, take turns moving the balls. The rule is: each player can choose any number of balls from one compartment and move them to the adjacent compartment on the right. The game ends when all the balls are moved to the rightmost compartment, and the player who moves the last ball wins.
Given a specific configuration (the number in each compartment represents the number of balls, and the number below each compartment represents the compartment's number), the first player has a winning strategy. To ensure victory, what is the first move the first player should make? How many balls should be moved from compartment number 1?

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