
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
Sherlock Holmes and Dr. Watson find a box with a four-digit combination lock. Above the lock is the cryptic message "AT SEA BASE. SEAS EBB BASS."

Dr. Watson suggests, "This appears to be a mathematical puzzle again. Let's consider that it implies a subtraction operation $SEAS - EBB = BASS$, where each letter represents a distinct digit, and maybe the word 'BASE' implies a different numeric base."

Holmes agrees, and they need to open the box. What could be the combination lock?

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