#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define FOR(i, m, n) for(int i = m; i < n; i++)

bool f(ll n) {
    while (n > 0) {
        if (n % 10 == 3) return true;
        n /= 10;
    }
}

int main() {
    ios::sync_with_stdio(false);
    cout.tie(0);

    ll a, b;
    cin >> a >> b;
    FOR(i, a, b + 1) {
        if (f(i) || i % 3 == 0) cout << i << endl;
    }
    return 0;
}