
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
The "Tuning Day Method" is a procedural algorithm for seeking precise fractional representations of numbers. Suppose the insufficient approximation and the excessive approximation of a real number $x$ are $\dfrac{b}{a}$ and $\dfrac{d}{c}$ ($a,b,c,d \in \mathbb{N}^*$) respectively, then $\dfrac{b+d}{a+c}$ is a more accurate insufficient approximation or excessive approximation of $x$. Given that $\pi = 3.14159…$, and the initial values are $\dfrac{31}{10} < \pi < \dfrac{16}{5}$, determine the more accurate approximate fractional value of $\pi$ obtained after using the "Tuning Day Method" three times.

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