text: #!/usr/bin/python
  
  # The reducer
  
  from operator import itemgetter
  import sys
  
  current_key = None
  current_count = 0
  key = None
  
  # Import the mapped FX data data
  for line in sys.stdin:
  
      # parse the input we got from mapper.py
      key, count = line.split('- ', 1)
      key = key.strip()
  
      try:
          count = int(count)
      except ValueError:
          continue
  
      if current_key == key:
          current_count += count
      else:
          if current_key:
              print '%s\t%s' % (current_key, current_count)
          current_count = count
          current_key = key
  
  # do not forget to output the last word if needed!
  if current_key == key:
      print '%s\t%s' % (current_key, current_count)
  