
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
Seven friends sat in a movie theater in a row containing $7$ seats, numbered $1$ to $7$ from left to right. During the movie, Fiona went to the lobby. When she returned, Greg had moved three seats to the right, Hannah had moved two seats to the left, Ian and Jane had switched seats, Kayla moved one seat to the right, and Lou moved two seats to the left, leaving an end seat for Fiona. In which seat had Fiona been sitting before she got up?
A) 1
B) 3
C) 5
D) 6
E) 7

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