#!/usr/bin/python

# P2PU - Python Programming 101 - Chapter 6 - Flow Control
# Python for Informatics - Chapter 5 - Iteration

print '\n# Exercise 5.1\n'
count   = 0
total   = 0
average = 0
while True:
  number = raw_input('Enter a number: ')
  if number == 'done' : break;
  try:
     number = float(number)
     count  = count + 1
     total  = total + number
  except:
     print "Error, please enter a number, or 'done' to finish"
print 'Total   =', total
print 'Count   =', count
if count > 0 : average = total/count
print 'Average =', average