n = int(input())
ls1 = list(map(int,input().split()))
m = int(input())
ls2 = list(map(int,input().split()))
i,j = 0,0
ls = []
while i < n and j < m:
if ls1[i] == ls2[j]:
ls.append(ls1[i])
i += 1
j += 1
else:
if ls1[i] < ls2[j]:
i += 1
else:
j += 1
ls.sort()
print(' '.join(map(str,ls)))