# coding:utf-8

A, B = map(int, input().split())
n = 3
l = list()
for i in range(B - A + 1):
    l.append(i + A)

for i in l:
    if i % n == 0:
        print(i)
    elif str(n) in str(i):
        print(i)
    else:
        continue