
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
Please fill in each arrow in the diagram with an appropriate number such that the number inside the arrow represents the number of different digits in the direction the arrow points to. What is the four-digit number formed by the digits filled in the second row from left to right in the diagram? (The diagram is a $3 \times 3$ example).

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