
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
Fill the numbers 1 to 9 into a grid. Each cell must contain one integer, and different cells must contain different numbers. Additionally, the sum of the numbers in the surrounding cells (cells that share a common edge with a given cell) must be an integer multiple of the number in that cell. Given that two cells already contain the numbers 4 and 5, determine: what is the maximum number that can be placed in the cell labeled \( x \)?

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