1. **Problem statement:** Draw an example of sets $A$ and $B$. 2. A simple example is to use two overlapping sets so you can see elements that are only in $A$, only in $B$, and in both. 3. Let $A=\{1,2,3\}$ and $B=\{3,4,5\}$. 4. Then the overlap is the element $3$, because it belongs to both sets. 5. A clear way to draw this is with a Venn diagram: one circle for $A$, one circle for $B$, and put $3$ in the overlapping region. 6. Final answer: $A=\{1,2,3\}$ and $B=\{3,4,5\}$, with $3$ in the intersection.