
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

The Petrov family is renovating their apartment. They can hire a company for a "turnkey renovation" for 50,000 rubles or buy materials for 20,000 rubles and do the renovation themselves, but they will need to take unpaid leave. The husband earns 2,000 rubles per day, and the wife earns 1,500 rubles per day. How many workdays can they spend on the renovation to make it more cost-effective than hiring workers?

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