Shade the regions where points satisfy `|x-y| lt 1`.

Explanation

To solve the problem of shading the regions where points satisfy the inequality \( |x - y| < 1 \), we can break it down into a series of steps:

### Step 1: Understand the Inequality
The inequality \( |x - y| < 1 \) can be rewritten as two separate inequalities:
1. \( x - y < 1 \)
2. \( x - y > -1 \)