
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
Given that four students are signing up for interest groups in mathematics, computer science, and model aviation, and each student can only sign up for one interest group, there are __________ different registration methods.

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