#coding:utf-8

n=raw_input().split()
a=int(n[0])
b=int(n[1])

s=[]
for i in range(a,b+1):
	if i % 3 ==0:
		s.append(i)
	else:
		if '3' in str(i):
			s.append(i)

for i in sorted(s):
	print i