def contains_three(n : Int32) : Bool
  num = n
  while num > 0
    return true if num % 10 == 3
    num //= 10
  end
  false
end

a, b = read_line.split.map(&.to_i)
(a..b).each do |i|
  if i % 3 == 0 || contains_three(i)
    puts i
  end
end