# Compute the mode of a list of values entered by the user

# Read all of the values from the user and store them in a list
# A blank line will be used to mark the end of input
data = []
line = input("Enter a value (blank line to exit): ")
while line != "":
  data.append(line)
  # Read the next input value
  line = input("Enter a value (blank line to exit): ")

# Create a new, empty dictionary
counts = {}

# For each item in the list
for item in data:
  # If the item is already present in the dictionary
  if item in counts.keys():
    # Increase its count by 1
    counts[item] = counts[item] + 1
  # Otherwise
  else:
    # Add it to the dictionary with a count of 1
    counts[item] = 1

# If there were values entered
if len(data) > 0:
  # Find the key in the dictionary with the largest value and display the result
  largest_value = max(counts.values())

  # List all of the keys that have a value equal to largest_value
  print("The mode or modes of the list is/are:")
  for item in counts.keys():
    if counts[item] == largest_value:
      print(item)
else:
  # Display an appropriate message if no values were entered
  print("No values were entered.")