
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
Three workers need to make 80 identical parts. Together, they produce 20 parts per hour. Initially, only the first worker starts working and makes 20 parts, taking more than 3 hours. The remaining work is completed by the second and third workers together. The total time taken to complete the work is 8 hours. How many hours would it take for the first worker to make all 80 parts by himself?

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