
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 Class 3 of Senior Year 3 has a total of 56 students, with seat numbers ranging from 1, 2, 3, ..., 56, and a sample of size 4 is drawn using systematic sampling with students with seat numbers 3, 17, and 45 in the sample, determine the seat number of the remaining student in the sample.

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