
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
Given that 5 types of anti-inflammatory drugs and 4 types of antipyretic drugs are available, and considering that X<sub>1</sub> and X<sub>2</sub> must be used together, and X<sub>3</sub> and T<sub>4</sub> cannot be used at the same time, calculate the total number of different test schemes.

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