
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
Three integers are arranged in increasing order and the sums of them taken in pairs are 18, 25, and 27. What is the middle number?
A) 9  
B) 10  
C) 11  
D) 12

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