
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
Given nine cards with the numbers \(5, 5, 6, 6, 6, 7, 8, 8, 9\) written on them, three three-digit numbers \(A\), \(B\), and \(C\) are formed using these cards such that each of these numbers has three different digits. What is the smallest possible value of the expression \(A + B - C\)?

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