
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
The distance from point \(A\) to point \(B\) is 899 km. Along the road connecting \(A\) and \(B\) there are kilometer markers that indicate the distances to \(A\) and \(B\). The markings on them look like this:

$$
0|999, 1|998, 2|997, \ldots, 899|0
$$

How many of these markers have labels that consist of only two distinct digits?

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