#include <bits/stdc++.h>

#define foreach(i, v) for(__typeof((v).begin()) i = (v).begin(); i != (v).end(); ++ i)
#define BETWEEN(a, x, b) (a<=x&&x<b)

using namespace std;
typedef long long ll;

int main(int argc, char *argv[]) {
  ios::sync_with_stdio(false);
	cin.tie(nullptr);
	cout.tie(nullptr);

  ll a,b;cin>>a>>b;
  for(ll i = a;i<=b;i++){
    stringstream ss;ss<<i;
    string s = ss.str();
    if(i % 3 == 0 || count(s.begin(), s.end(), '3') > 0)cout<<i<<endl;
  }

  return 0;
}