from collections import defaultdict

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

for i in range(1, n+1):
    w = input()
    A[w].append(i)

for i in range(m):
    w = input().strip()
    if w in A:
        res = A[w]
        res = map(str, res)
        result = ' '.join(res)
        print(result)
    else:
        print(-1)