split_list = input().split()
integer_list = list(map(int, split_list))
list_a = []
for i in range(integer_list[0]):
    list_a.append(input())

list_b = []
for i in range(integer_list[1]):
    list_b.append(input())

answer_1 = []

for element in list_b:
    sub_answer_1 = []
    for i in range(len(list_a)):
        if list_a[i] == element:
            sub_answer_1.append(i+1)
    if sub_answer_1:
        answer_1.append(sub_answer_1)
    else:
        answer_1.append([-1])
for i in answer_1:
    print(*i)