
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 positive integer is called a "lucky number" if it satisfies the following conditions:
(1) It consists of only the digits "6" and "8";
(2) It has at least two consecutive 8's.
For example, 886 is a three-digit "lucky number", 8866 is a four-digit "lucky number", and 686888 is a six-digit "lucky number". How many eight-digit "lucky numbers" are there?

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