from collections import defaultdict

n, m = map(int, input().split())
word_to_indices = defaultdict(list)

for i in range(n):
    word_to_indices[input()].append(i + 1)

for _ in range(m):
    result = word_to_indices[input()]
    if len(result) == 0:
        print(-1)
        continue

    print(*result)