#include <bits/stdc++.h>
typedef long long ll;
const int INF = 1e9;
const ll LINF = 1e18;
const int MOD = 1e9 + 7;
using namespace std;

bool check(int x) {
  if (x % 3 == 0) return true;
  while (x > 0) {
    if (x % 10 == 3) return true;
    x /= 10;
  }
  return false;
}

int main() {
  int a, b;
  cin >> a >> b;
  for (int i = a; i <= b; i++) {
    if (check(i)) cout << i << endl;
  }
}