#include <iostream>
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;
    } else {
      int t = i;
      while (t) {
        if (t % 10 == 3) {
          cout << i << endl;
          break;
        } else {
          t /= 10;
        }
      }
    }
  }
}