
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 sequence ${a_{n}}$ where ${a_{1}}=1$, ${a_{2}}=2$, and ${a_{n+2}}-{a_{n}}=2-2{(-1)^{n}}$, $n\in {N^{*}}$, find the value of ${S_{2017}}$.

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