
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
(2015·Shanghai) Among the 3 male teachers and 6 female teachers who signed up, 5 people are to be selected to participate in voluntary blood donation, with the requirement that both male and female teachers must be included. The number of different ways to select them is (express the result as a numerical value).

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