
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
The Qinghai-Tibet Interconnection Project starts from Xining, Qinghai in the east and extends to Lhasa, Tibet in the west, known as the "Electricity Skyway." As of May 2023, the "Electricity Skyway" has been operating safely for nearly 12 years, delivering a total of 105.9 billion kilowatt-hours of electricity to Tibet. Expressing 105.9 billion in scientific notation is ______.

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