barcode_generator

num_start = int(input())
list_num_start = []
num_start_str = str(num_start)
for x in num_start_str:
    list_num_start.append(int(x))
num_end = int(input())
list_num_end = []
list_a = []
list_b = []
list_c = []
list_d = []
num_end_str = str(num_end)
for x in num_end_str:
    list_num_end.append(int(x))
for a in range(list_num_start[0], list_num_end[0] + 1):
    if a % 2:
        list_a.append(a)
for b in range(list_num_start[1], list_num_end[1] + 1):
    if b % 2:
        list_b.append(b)
for c in range(list_num_start[2], list_num_end[2] + 1):
    if c % 2:
        list_c.append(c)
for d in range(list_num_start[3], list_num_end[3] + 1):
    if d % 2:
        list_d.append(d)

for a in list_a:
    i = a * 1000
    for b in list_b:
        j = b * 100
        for c in list_c:
            k = c * 10
            for d in list_d:
                z = i + j + k + d
                print(z, end=' ')