
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 music enthusiast, having labeled five newly listened to CDs with the numbers $1,2,3,4,5$, placed them in a cassette holder in a random order. What is the probability that CDs numbered 1 and 2 will be placed next to each other in the cassette holder and in ascending numerical order?

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