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from collections import defaultdict

# take input

n,m=[int(i) for i in input().split()]

# create a default dic that holds list in values

a = defaultdict(list)

# take list a input, append indexes to unique input keys

for i in range(n):

a[input()].append(i+1)

# pass the input of B as key,

# if already in a, will return its list, then unpack it using *

# else -1 needs to be displayed

for j in range(m):

print(*a.setdefault(input(), [-1]))

'''

Input -

5 3

a

a

b

a

b

a

b

c

output-

1 2 4

3 5

-1

'''