#
#  Compute the mode of a list.
#

#
#  Read the values from the user and store them in a list.
#
line = input("Enter an item to store in the list (blank to finish): ")
values = []
while line != "":
  values.append(line)
  line = input("Enter an item to store in the list (blank to finish): ")

#
# Construct a dictionary where the keys are items from the list and the
# values are the counts for how frequently each key occurred.
#
counts = {}
for item in values:
  # If the item is one that we have seen previously
  if item in counts.keys():
    counts[item] = counts[item] + 1
  else:
    # Otherwise the item is one that we have not seen before
    counts[item] = 1

#
#  Compute the mode by finding the key (or keys) with largest value.
#

if len(counts) > 0:
  #  Find the largest value in the dictionary
  largest = max(counts.values())

  #  Display all of the keys that have a value that is equal to the largest value.
  print("The mode or modes for the list is/are:")
  for k in counts.keys():
    if counts[k] == largest:
      print(k)
else:
  print("No values were entered so there is no mode to report.")