
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
There are 10 parts, among which 6 are first-class and 4 are second-class. If 3 parts are randomly selected from these 10 parts, the number of different ways to select at least one first-class part is \_\_\_\_\_\_.

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