Question: bottom-right: $28$
7User: complete solution with checking
1. The problem states a value at the bottom-right as $28$ and asks for a complete solution with checking.
2. Since the problem is not fully specified, we interpret it as verifying or using the value $28$ in a context.
3. If this is part of a matrix or grid, "bottom-right: 28" indicates the element in the bottom-right corner is $28$.
4. Without additional context, we confirm the value is $28$ as given.
5. Checking: The value $28$ is consistent with the problem statement.
6. If more context is provided, further steps can be done.
Final answer: $28$