#include <iostream>
using namespace std;

bool isContainedThree(long long num) {
  while (num != 0) {
    if (num%10 == 3) {
      return true;
    }
    num /= 10;
  }
  return false;
}

int main(){
  long long a,b;
  cin >> a >> b;

  for (long long i=a; i<b; i++) {
    if (i%3 == 0) {
      cout << i << endl;
    } else if (isContainedThree(i)) {
      cout << i << endl;
    }
  }

  return 0;
}