
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
In a box containing 18 different-colored crayons, Karl needs to choose 6 crayons for a project. However, at least one of the crayons must be either red or blue, and both colors are available among the crayons. How many different ways can he select the crayons, ensuring at least one is red or blue?

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