from collections import defaultdict

d = defaultdict(list)
n , m = map(int , input().split())
for i in range(1 , n+1):
    n_word = input()
    d[n_word].append(i)
for i in range(m):
    m_word = input()
    
    if m_word in d:
        print(" ".join(map(str,d[m_word])))
    else:
        print(-1)