
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
You are given an \( m \times n \) chocolate bar divided into \( 1 \times 1 \) squares. You can break a piece of chocolate by splitting it into two pieces along a straight line that does not cut through any of the \( 1 \times 1 \) squares. What is the minimum number of times you have to break the bar in order to separate all the \( 1 \times 1 \) squares?

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