import math
a,b = map(int, input().split())
x = 10
t = 10
for i in range(a, b + 1):
	if i % 3 == 0:
		print(i)
	while x < 1000000000:
		if math.floor(i / x) == 3:
			print(i)
		x = x * 10
	while t < 1000000000:
		if i % t == 3:
			print(i)
		t = t * 10