# Use the file name mbox-short.txt as the file name
fname = raw_input("Enter file name: ")
if len (fname) == 0:
	fname = ('mbox-short.txt')
fh = open(fname)

count = 0
flotsum = 0

for line in fh:
	if not line.startswith("X-DSPAM-Confidence:") : continue
	line = line.strip("X-DSPAM-Confidence:") .rstrip()
	flotnum = float (line)
	count = count + 1
        flotsum = flotsum + flotnum
	#print flotnum
print "Count: ", count
print "Average: ", flotsum / count
print "Done"