
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 fair standard eight-sided die is tossed four times. Given that the sum of the first three tosses equals the fourth, calculate the probability that at least one "3" is tossed.

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