
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]


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Six friends, Ada, Bea, Ceci, Dee, Edie, and Flo, are sitting in a row at a sports event in 6 seats numbered 1 to 6 from left to right. During an exciting moment, all but Flo move. Ada moves one seat to the left, Bea moves three seats to the right, Ceci and Dee switch seats, Edie moves one seat to the right, and Flo is left sitting in one of the end seats. Determine the seat that Flo originally occupied.

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