
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 certain junior middle school, a leader decided to conduct dental health checks on 50 students out of the entire preparatory grade of 800 students using a systematic sampling method. The students were numbered from 1 to 800, and an interval of 16 was determined. A random number between 1 and 16 was drawn, and if the number 7 was drawn, determine which number should be selected from the set of numbers 49 to 64.

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