
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
A certain organization has 840 staff members. Now, 42 individuals are chosen using systematic sampling for a questionnaire survey. If all 840 individuals are randomly assigned numbers from 1 to 840, determine the number of people among the 42 sampled whose numbers fall within the interval $[61, 120]$.

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