
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
Gavril placed 7 smaller boxes into a large box. Then, Glafira placed 7 small boxes into some of these seven boxes and left some empty. Afterward, Gavril placed 7 boxes into some of the empty boxes and left some empty. Glafira repeated this process, and so on. At one point, there were 34 non-empty boxes. How many empty boxes were there at that moment?

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