
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
I want to choose a license plate that is 4 characters long, where the first character is a letter, the last two characters are either a letter or a digit, and the second character can be a letter or a digit but must be the same as either the first or the third character. Additionally, the fourth character must be different from the first three characters. How many ways are there to choose such a license plate?

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