
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
A person's phone number is an eight-digit number. Adding the number formed by the first four digits to the number formed by the last four digits results in 14405. Adding the number formed by the first three digits to the number formed by the last five digits results in 16970. Find this person's phone number.

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