
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 Class 18 of Grade 12 at our school, there are 56 students who are serially numbered from 1, 2, 3, ..., to 56. A systematic sampling method is used to draw a sample size of 4. It is known that students with numbers 6, 34, and 48 are in the sample. Therefore, the number of the other student in the sample should be $\boxed{20}$.

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