
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 bottle of alcohol, the first time pours out $$\frac {1}{3}$$ of its content, then 40 grams are poured back into the bottle; the second time, $$\frac {5}{9}$$ of the remaining alcohol in the bottle is poured out; the third time, 180 grams are poured out, and there are still 60 grams left in the bottle. How many grams of alcohol were originally in the bottle?

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