
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 sets $M=\{-1, 1, 2, 4\}$ and $N=\{0, 1, 2\}$, consider the following four relationships: ① $y=x^2$, ② $y=x+1$, ③ $y=2^x$, ④ $y=\log_2|x|$, among these, the ones that can form a mapping from $M$ to $N$ are.

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