
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
Andy, Bob, Carla, and Doug are technicians in a hospital. Their shifts rotate as follows: Andy works every fifth day, Bob works every sixth day, Carla works every eighth day, and Doug works every ninth day. All four are on duty today. After how many days will they all be on duty together again?

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