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

int main() {
  long long int a, b;
  int flag;

  cin >> a >> b;
  for (int i = a; i <= b; i++) {
    flag = 0;
    for (int j = i; 1; j = j / 10) {
      if (j % 10 == 3) {
        flag = 1;
        break;
      }
      if (j / 10 == 0) {
        break;
      }
    }
    if ((i % 3 == 0) || (flag == 1)) {
      cout << i << endl;
    }
  }
}