
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
Bill is sent to a pastry shop to purchase exactly eight pastries. The shop has five kinds of pastries, and Bill is to get at least one of each kind, but he doesn't like one type so he will not buy more than one of that type. How many combinations will satisfy Bill's order requirements?

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