
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
Calculate:
1. $(-\frac{3}{8})+(-\frac{5}{8})\times (-6)$;
2. $12+7\times (-3)-18\div (-3)$;
3. $-2^{2}-\frac{4}{7}\times 2-(-3)^{2}$;
4. $-(-1)^{2020}+6\div (-2)^{3}\times (-\frac{1}{3})$.

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