s, e = map(int, input().split())

for i in range(s, e + 1):
    if i % 3 == 0:
        print(i)
    elif i % 10 == 3:
        print(i)
    else:
        str_i = str(i)
        for j in range(len(str_i)):
            if str_i[j] == '3':
                print(i)
                break