# -*- coding:utf-8 -*-

if __name__ == "__main__":
	a,b = map(int,raw_input().split())
	for i in xrange(a,b+1):
		if i % 3 == 0:
			print i
		else:
			temp = i
			while temp > 0:
				if temp % 10 == 3:
					print i
					break
				temp /= 10