An aeroplane company has developeu a I$$evr to test it$.$ When the team is flying a plane, they begin by collecting data about its height at various points of time. They use this data to create a graph of the plane's height over time. This allows them to visualize the pattern of increase and decrease in height.

To determine the plane's maximum capabilities, they must identify $A^8$ the heights of the plane during the longest time interval in which the height strictly increases, reaches the peak height, and then strictly decreases.