
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 a class of 50 students, a sample of size 4 is drawn using the systematic sampling method. It is known that students with identification numbers 6, 30, and 42 are included in the sample. Determine the identification number of the fourth student in the sample.

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