def nabeatsu(n):
	if n % 3 == 0:
		return True
	else:
		s = str(n)
		for i in range(0, len(s)):
			if s[i] == '3':
				return True
		return False

inpt = map(int, raw_input().split())
a = inpt[0]
b = inpt[1]

for i in range(a, b+1):
	if nabeatsu(i):
		print i