
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 four Chinese idioms: "一家之言", "言扬行举", "举世皆知", and "知行合一", each character in these idioms represents one of 11 consecutive non-zero natural numbers. The same character represents the same number, and different characters represent different numbers. If the sum of the numbers represented by the four characters in each idiom is 21, what is the maximum number that "行" can represent?

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