#include <bits/stdc++.h>

#define rep(i, n) for (int (i) = 0; (i) < (int)(n); (i)++)

const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int, int> pii;

bool ok(ll a) {
    if (a % 3 == 0) return true;
    while (a) {
        int tmp = a%10;
        if (tmp == 3) return true;
        a /= 10;
    }
    return false;
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll A, B;
    cin >> A >> B;
    for (ll i = A; i <= B; i++) {
        if (ok(i)) {
            cout << i << endl;
        }
    }
    return 0;
}