#include <bits/stdc++.h>
using namespace std;


int main() {
  int a, b;
  cin >> a >> b;
  for (int i = a; i <= b; i++) {
    if (i % 3 == 0) {
      cout << i << endl;
      continue;
    }
    for (int t = i; t > 0; t /= 10) {
      if (t % 10 == 3) {
        cout << i << endl;
        break;
      }
    }
  }
  return 0;
}