#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  int a, b;
  cin >> a >> b;
  for (int x = a; x <= b; x++) {
    bool chk = false;
    chk |= (x % 3 == 0);
    chk |= (to_string(x).find('3') != string::npos);
    if (chk) {
      cout << x << endl;
    }
  }
  return 0;
}