fin = open('input.txt', 'r', encoding='utf-8')
fout = open('output.txt', 'w', encoding='utf-8')


def intersection(A, B):
    l = [x for x in A if x in B]
    return sorted(l)


A = set(map(int, fin.readline().split()))
B = set(map(int, fin.readline().split()))

print(*intersection(A, B), file=fout)
fin.close()
fout.close()