
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
B-bank issues ATM cards with a four-digit PIN code that does not include the number 0. Mr. Skleróza was afraid he would forget the PIN code of his card, so he wrote it directly on it, but in Roman numerals as IIIVIIIXIV to make it harder for a potential thief. He shared his idea with his best friend, Mr. Odkoukal, who was also a client of B-bank. Soon after, Mr. Odkoukal did the same with his PIN code and wrote it on his card as IVIIIVI. To his great surprise, however, he could not determine his PIN code precisely from the Roman notation.

1. What is the PIN code of Mr. Skleróza's card?
2. What could be the PIN code of Mr. Odkoukal's card?

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