
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
Five students have the first names Clark, Donald, Jack, Robin and Steve, and have the last names (in a different order) Clarkson, Donaldson, Jackson, Robinson and Stevenson. It is known that Clark is  $1$  year older than Clarkson, Donald is  $2$  years older than Donaldson, Jack is  $3$  years older than Jackson, Robin is  $4$  years older than Robinson. Who is older, Steve or Stevenson and what is the difference in their ages?

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