
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 Joker and Harley Quinn plan to make money by mining cryptocurrency. They chose Ethereum (ETH) for mining as it is one of the most stable and promising currencies. They bought a system unit for 9499 RUB and two graphics cards for 20990 RUB each. The energy consumption of the system unit is 120 watts, and each graphics card consumes 185 watts. The mining speed of one graphics card is 23 million hashes per second, allowing each card to earn 0.00630 ETH per day. 1 ETH equals 27790.37 RUB. How many days will it take for the heroes' investment to pay off, considering the electricity cost of 5.38 RUB per kWh?

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