
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 Xiao Ying bought stamps worth 10 yuan, including at least 2 stamps of 0.10 yuan, at least 5 stamps of 0.20 yuan, at least 3 stamps of 0.50 yuan, and at least 1 stamp of 2 yuan, calculate the minimum number of stamps she bought.

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