from collections import defaultdict

x,y = input().split() B = []

A = defaultdict(list)

for i in range(int(x)): a= input() A[a].append(i+1)

for j in range(int(y)): b= input()

if(b in A.keys()):        
    [print(z,end=" ") for z in A[b]]
else:
    print(-1)