
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
Is there a finite word composed of Russian alphabet letters in which there are no two neighboring identical subwords, but such identical subwords appear when any letter from the Russian alphabet is appended either to the right or to the left of the word?

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