
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
Xiaodong has several 1 yuan coins in his piggy bank. He takes out some coins to buy snacks every day. On the first day, he takes out 1/9 of the coins, and for the next 7 days, he respectively takes out 1/8, 1/7, 1/6, 1/5, 1/4, 1/3, and 1/2 of the coins at that time. After 8 days, there are 5 coins left. How many coins were there originally in the piggy bank?

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