# Python 2.5 version
from collections import defaultdict 

def list_difference25(a, b):
     """Find (a - b) preserving duplicates and order."""
     # count items in a
     count = defaultdict(int) # item -> number of occurrences  (no OrderedDict to avoid Python 2.7 dependency)
     for x in a:
         count[x] += 1

     # remove  items that are in b
     for x in b: 
          count[x] -= 1
     diff = []
     for x in a:
          if count[x] > 0:
             count[x] -= 1
             diff.append(x)
     return diff

# Python 2.7 version
from collections import Counter

def list_difference(a,  b):
    count = Counter(a)
    count.subtract(b)
    diff = []
    for x in a:
          if count[x] > 0:
             count[x] -= 1
             diff.append(x)
    return diff

a, b = raw_input().split(), raw_input().split()
print list_difference25(a, b)
print list_difference(a, b)