s = set()
s2 = set()
while True:
    a = input()
    if a == "":
        break
    s.add(a)
while True:
    b = input()
    if b == "":
        break
    s2.add(b)

k = s & s2
if len(k) != 0:
    for elem in k:
        print(elem)
else:
    print("EMPTY")