#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<ll> vll;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<vector<ll>> vvll;
const ll inf = 1e16;
const ll md = 1000000007;

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

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