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

def main():

	numbers = [int(box) for box in input().split()]

	num = numbers[0]
	while num <= numbers[1]:
		a = str(num).split('3')
		if num % 3 == 0:
			print(num)
		elif len(a) > 1:
			print(num)

		num += 1



if __name__ == "__main__":
	main()