
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
Students of Class 4(1) are lined up for a field trip. Xiaohong is the 15th person from the front of the line, and Xiaoming is the 20th person from the end of the line. There are 3 people between Xiaohong and Xiaoming. How many students are there in Class 4(1) in total?

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