shittycomp.py2

#!/usr/bin/python
#
from sys import argv
#data = open(argv[1],'r')
#for line in data:
#  q = [(x,y) for x in line.split(';')[0] for y in line.split(';')[1] if ( x==y and x != ',' and y != ',')]
#  if zip(*q): 
#    print ','.join(list(zip(*q)[0]))
#  else: print
#data.close()

data = open(argv[1],'r').read().splitlines()
for line in data:
  if not line: continue
  q, w = line.split(';')
  stuff = [(x,y) for x in q.split(',') for y in w.split(',') if x==y ]
  if stuff:
    print ','.join(map(lambda x: x[0], stuff))

#print '================'
#data = open(argv[1],'r').read().splitlines()
#for line in data:
#  l0 = line.split(';')[0]
#  l1 = line.split(';')[1]
#  res=[]
#  for q in l0:
#    for w in l1:
#      if q==w and q!=',': res.append(q)
#  print ','.join(res)