
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
A high school math textbook contains $2$ required textbooks and $3$ selective required textbooks. Now, $3$ textbooks are to be selected from them, with the requirement that at least one textbook must be selected from each category. The total number of different ways to select the textbooks is ______. (Provide your answer as a number)

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