⚖️ Absolute Domain

👉 Adventure Rules:
1. [Barrier Anchor]: Identify interval symbols. Solid [ ] means inclusive, hollow ( ) means exclusive!
2. [Radar Positioning]: |x - a| ≤ d. Find the center a, and manually input the boundary coordinates!
3. [Absolute Field]: Inequality regions. "Less than" is in the middle, "greater than" is on the sides. Predict the range direction and calculate boundaries!

⚠️ Levels 5~12 require manually entering exact boundary numbers to verify. Points are deducted for wrong answers!