
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
Let the function $f(x) = |x - 3| - |x + a|$, where $a\in \mathbb{R}$.  
(I) When $a = 2$, solve the inequality $f(x) < 1$;  
(II) If for any real number $x$, it always holds that $f(x) \leq 2a$, find the range of values for $a$.

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