4. The following memory addresses represent a stack with the following properties:

stack base = 40 hex

maximum size number of elements in the stack = 3

stack pointer location = 43 hex:

Address (in hex):	40	41	42	43
Contents:	Q	T	R	40

Show all of the memory contents after pushing the value Y and then performing a pop operation:

Address (in hex):	40	41	42	43
Contents: