
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
In an office setting, a manager gives their assistant several tasks to complete throughout the day, placing each new task on top of a stack. The tasks are given in the order $1, 2, 3, 4, 5, 6, 7, 8, 9, 10$. At some point, the assistant informs a colleague that task $9$ has already been completed but does not mention the status of other tasks. Determine the number of possible orders in which the remaining tasks might be completed after this point, considering that no tasks are left as one of the possibilities.

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