#include <bits/stdc++.h>
#include <boost/range/adaptor/filtered.hpp>
#include <boost/range/adaptor/strided.hpp>
#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/algorithm.hpp>
#include <boost/range/irange.hpp>
#include <boost/range/numeric.hpp>

using namespace std;

template <typename T> T gcd(T x, T y) {
  if (y == 0)
    return x;
  return gcd(y, x % y);
}

template <typename T> T lcm(T x, T y) {
  if (x == 0 || y == 0)
    return 0;
  return x / gcd(x, y) * y;
}

int main() {
  int A, B;
  cin >> A >> B;
  auto ans = boost::irange(A, B + 1) | boost::adaptors::filtered([](int i) {
               return boost::count(to_string(i), '3') > 0;
             });

  for (int i : ans)
    cout << i << endl;
}