
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
Leigh starts her journey from point $A$. She walks 50 yards south, then 80 yards west, 30 yards north, and then 40 yards east to reach point $B$. Calculate the straight-line distance, in yards, from point $A$ to point $B$.

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