
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 post office currently has three types of stamps: 0.4, 0.8, and 1.5 units in value. For a package that requires 10.2 units in postage, to minimize the number of stamps used while exactly meeting the postage requirement, the number of stamps needed is ___.

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