
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
From the sets {A, B, C, D, E} and {1, 3, 5, 7, 9}, select 2 elements from each set to form a row (both letters and numbers cannot be repeated), and in each row, the letter A and the number 9 can appear at most once. Find the number of different arrangements. (Answer with a number).

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