
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
A cylindrical vase has a circumference of 16 inches and a height of 8 inches. A spiral ribbon is wrapped around the vase such that it makes exactly two complete turns from the bottom to the top, ending directly above the starting point. Determine the length of the ribbon.

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