
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
Given the universal set $U=\{x \in \mathbb{N}^* | x \leq 4\}$, and sets $A=\{1,4\}$ and $B=\{2,4\}$, calculate the complement of the intersection of sets $A$ and $B$ in $U$, denoted by $C_U(A \cap B)$.

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