
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
During a play in a row of 5 seats at the theater, numbered 1 to 5, Alfie, Bob, Carl, Doug, and Eddy are seated. Alfie steps out for a moment, and during his absence, the following movements occur:
- Bob moves one seat to the right.
- Carl moves two seats to the right.
- Doug swaps places with Eddy, after which Doug moves one seat to the left.
When Alfie returns, he occupies an end seat. Where was Alfie originally seated?
A) Seat 1
B) Seat 2
C) Seat 3
D) Seat 4
E) Seat 5

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