# In-class Exercise
# (1) Create a 3D array of 24 integers with dimensions (2, 3, 4)
# (2) Add a unique name to every column for each dimension
# (3) Write a function to find the maximum of each column along the given dimension
# Example: input array A =
#                         , , h
#                         e  f  g
#                      a  4 55 63
#                      b 45 88 15
#                      c 74 44 13
#                      d 41 17 77
#                         , , i
#                         e  f  g
#                      a  97  3 86
#                      b  78 62 66
#                      c  84 46 64
#                      d 100 65 96
# getMax(A,1)=(97,88,84,100), getMax(A,2)=(100,88,96), getMax(A,3)=(88,100)