
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
It is known that the optimal addition amount of a certain biological agent is between 20g and 30g. If the 0.618 method is used to arrange the experiment, the addition amount for the first trial can be.

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