
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
A man is good at walking, and he increases his walking distance by the same amount every day. In nine days, he walks a total of 1,260 li. The sum of the distances he walked on the first, fourth, and seventh days is 390 li. Calculate the distance he walked on the sixth day.

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