
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
It is known that the Earth's orbit is an ellipse, with the Sun located at one of the foci of this ellipse. The semi-major axis of this ellipse is approximately $1.5 \times 10^8$ km, and the semi-minor axis is about $3 \times 10^6$ km. What is the maximum distance from the Earth to the Sun in kilometers?

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