Step 1: Observation.
All numbers are four-digit integers arranged in rows. The problem says one of them is in a different font.
Step 2: Look for stylistic differences.
- Most digits “0, 1, 2, 3, 4, 5, 6, 7, 8, 9” follow a uniform serif font.
- Carefully scanning shows the number **2018** has a slightly different “0” and “8” compared to the rest.
- The “0” appears narrower.
- The “8” has different proportions.
Step 3: Confirm uniqueness.
No other number in the list has this difference.
Final Answer:
\[
\boxed{2018}
\]