
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
Encrypting numbers for secure transmission often involves encrypting them according to certain rules, and then the recipient decrypts them according to agreed-upon rules. A certain cipher encrypts a multi-digit number by cubing each digit and then adding 1, and then taking the unit digit of the result as the encrypted digit. If a digit is 1, it becomes 2; if a digit is 4, it becomes 5, and so on. What is the encrypted result of "3859"?

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