
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
Coach Grunt is organizing his basketball team's lineup for an upcoming tournament. The team, the Grunters, consists of 15 players. Two star players, Ace and Zeppo, are certain to start. How many different 6-person starting lineups can be formulated, given that the positions of players in the lineup don't matter?

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