''' Purpose: demonstrate the processing numeric input
'''

# get input
# remember input gives you a string of what the user types
# reply is a string
reply = input( 'Enter rectangle width and height: ' )  

# we have two numbers in a string we cant use them this way
# every string has a split function; it splits the string int a list of strings
# this splits on spaces so the first number we type will go into w and the
# second will go into h

# split into two components ( cant do more or less than 2 or error)
# split is not a built in function it is a behavior of strings
w, h = reply.split()  # we will learn how to split on something other than spaces later
print( w, type( w ) )
print ( h, type( h ) )

# still strings so w and h are glued together rather than numerically added
s = w + h
# s is a string
print( s, type( s ) )

# we want them to be numbers!
# cast them to int
# must convert list of numbers one at a time
# w, h = int(w, h) # int wants one thing that can be converted into an integer
# w, h = int( reply )# wont work cuz reply isn't split and int can only work on one value at a time

w, h = int( w ), int( h )   # int converts strings (that can be ints) into integers
print( w, type( w ) )
print ( h, type( h ) )

# compute area
area = w * h                                           

# display result
print( area )