#
#  Compute the median of a collection of values that are all entered by the
#  user.
#


#
#  Read all of the values from the user and store them in a list.
#

# Create a new, empty list.
data = []

# Read the first value from the user
line = input("Enter a number (blank line to quit): ")

# While the line entered by the user is not blank...
while line != "":
  # Convert the user input into a number
  num = float(line)

  # Append the number to the list
  data.append(num)

  # Read the next value from the user
  line = input("Enter a number (blank line to quit): ")

print(data)

#
#  Sort the list of values.
#
data.sort()

print(data)

if len(data) == 0:
  print("A median cannot be computed because no values were entered.")
else:
  #
  #  Report the median as either middle value or the average of the two 
  #  "middle" values.
  #

  # If the length of the list is odd
  if len(data) % 2 == 1:
    # Median is the middle element in the list
    median = data[len(data) // 2]
  else:
    # The length of the list is even, so the median is the average of the two
    # "middle" elements.
    median = (data[len(data) // 2] + data[len(data) // 2 - 1]) / 2

  print(f"The median of those values is {median}.")