
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
In a certain cinema, the first row has 18 seats, the second row has 21 seats, the third row has 24 seats, the fourth row has 27 seats, and so on. Each row has 3 more seats than the previous row. What is the number of seats in the $n$-th row, $m=\_\_\_\_\_\_$? (No need to specify the range of values)

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