#Callum Brown
#16-09-14
#Development exercise 4

length = float(input("Please could you enter the length of the pool: "))
width = float(input("Please could you enter the width of the pool: "))
depth_shallow = float(input("Please could you enter the shallowest depth of the pool: "))
depth_deep = float(input("Please enter the deepest depth of the pool: "))

depth_differnce = (depth_deep-depth_shallow)

