
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
There is a four-digit number with the following statements about it: "The number contains the digits 1, 4, and 5", "The number contains the digits 1, 5, and 9", "The number contains the digits 7, 8, and 9." Exactly two of these statements are true. Which digits appear in this number?

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