
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
You are given 16 pieces of paper numbered \(16, 15, \ldots, 2, 1\) in that order. You want to put them in the order \(1, 2, \ldots, 15, 16\) switching only two adjacent pieces of paper at a time. What is the minimum number of switches necessary?

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