first_lst = [int(i) for i in input().split(',')]
second_lst = [int(i) for i in input().split(',')]

new_set = len(first_lst) * [-1]

for i in range(len(first_lst)):
    for j in range(len(second_lst)):

        if first_lst[i] == second_lst[j]:

            for k in range(j+1, len(second_lst)):
                if second_lst[k] > first_lst[i]:
                    new_set[i] = second_lst[k]
                    break


print(','.join(str(i) for i in new_set))