
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
Teacher Li plans to use $30$ yuan to buy both types of signature pens $A$ and $B$, where the price of each $A$ type pen is $5$ yuan and the price of each $B$ type pen is $2$ yuan. Determine the minimum number of types of pens that Teacher Li can buy.

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