import re

f = open('anonymous-msweb.data','rW')
fo = open('baskets1.txt','w')

myList = []
lastKey=''
"""counter = 0
for line in f:
  print line
  counter += 1
  if counter >=60:
    break"""

for line in f:
#  print line
  data = line.split(",")
  if data[0]=='A':
    key = data[1]
    value = data[3]
    #print value
    #value = re.sub(r'\W+','_',value)
    #print value
    if key==lastKey:
       myList+=[value]
    else:
       if len(myList) > 0:
          fo.write(','.join(  myList  )+'\n')
       myList = [value]
       lastKey=key
  if data[0] =='C':

if len(myList) > 0:
   fo.write(','.join( myList  ))
fo.close()
f.close()