#!/usr/bin/env python3
# -*- coding: utf-8-*-
if __name__ == '__main__':
    a, b = map(int, input().split(" "))
    for i in range(a, b+1):
        if i % 3 == 0:
            print(i)
            continue
        t = i
        while t > 0:
            if t % 10 == 3:
                print(i)
            t = t // 10