from collections import defaultdict
n,m = map(int,input().split())
d = defaultdict(list)
for i in range(n):
    A = input()
    d[A].append(i+1)

for j in range(m):
    B = input()
    if B in d.keys():
        val = d[B]
        print(*val)
    else:
        print(-1)