first_num = int(input())
second_num = int(input())

first = str(first_num)
second = str(second_num)
for i in range(int(first[0]), int(second[0])+1):
   for j in range(int(first[1]), int(second[1])+1):
       for k in range(int(first[2]), int(second[2])+1):
           for l in range(int(first[3]), int(second[3])+1):
               if i % 2 != 0 and j % 2 != 0 and k % 2 != 0 and l % 2 != 0:
                   print(f"{i}{j}{k}{l}", end=" ")