Can you provide an example problem using the Edgeworth Box to illustrate the concept of Pareto efficiency?

In an Edgeworth Box, two individuals allocate goods between themselves to maximize their utility. Pareto efficiency occurs when no individual can be made better off without making the other worse off. For example, if person A has more of good X and person B has more of good Y, a Pareto improvement would involve reallocating the goods in a way that both individuals are better off without making the other worse off.