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

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