# coding: utf-8
# Here your code !
x,y=[int(i) for i in input().split()]



for i in range(x,y):
    a = int(i / 10)
    b = i - a * 10
    #print(a)
    #print(b)
    
    if i % 3 == 0 or a == 3 or b == 3 : 
        print(i)