#include <bits/stdc++.h>
#define FOR(i,bg,ed) for(ll i=(bg);i<(ed);i++)
#define REP(i,n) FOR(i,0,n)
#define MOD 1000000007
#define int long long
using namespace std;
typedef long long ll;
typedef vector<vector<ll>> mat;
const int INF = 1e9;



signed main()
{
    int A, B;

    cin >> A >> B;
    for (int i=A; i<=B; i++) {
        if (i % 3 == 0 || to_string(i).find('3') != string::npos) {
            cout << i << endl;
        }
    }
}