
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
An environmental agency plans to expand its workforce to address three types of pollution: water, air, and soil. They need 90 new employees for water pollution monitoring, 80 for air pollution, and 50 for soil pollution. Some employees can handle multiple types of pollution: 30 can monitor both water and air, 20 can monitor both air and soil, and 15 can monitor both water and soil. Additionally, 10 employees are skilled enough to monitor all three types. Determine the minimum number of new employees the agency needs to hire.

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