#include <bits/stdc++.h>

using namespace std;

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

int main() {
  int a, b;
  cin >> a >> b;
  for (int i = a; i <= b; i++) {
    if (i % 3 == 0 || check(i)) {
      cout << i << endl;
    }
  }
  return 0;
}