
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
How many four-digit numbers are there such that the second digit is the average of the first and third digits, and the third digit is the average of the second and fourth digits?
A) 205
B) 215
C) 225
D) 235
E) 245

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