
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
During the opening ceremony of a sports meeting held at a school, there were 750 teachers and students in total. They were numbered from 1 to 750 and divided into three formations: the first formation consisted of numbers 1 to 300, the second formation consisted of numbers 301 to 700, and the third formation consisted of numbers 701 to 750. If a systematic sampling method is used to select 50 representatives from the three formations, and the randomly selected number from the first segment is 3, then the number of people selected from the first formation is \_\_\_\_\_\_.

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