
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
Let \( X = \{1, 2, \ldots, 100\} \). How many functions \( f: X \rightarrow X \) satisfy \( f(b) < f(a) + (b - a) \) for all \( 1 \leq a < b \leq 100 \)?

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