#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define fr(i, a, b) for (int i = (a); i < (b); i++)
#define all(c) (c).begin(), (c).end()
using namespace std;
typedef long long ll;
const ll inf = 1e9;
const ll mod = 1e9 + 7;

int A, B;

bool x(int n) {
    while (n > 0) {
        int d = n % 10;
        if (d == 3) return true;
        n /= 10;
    }

    return false;
}

bool y(int n) {
    return n % 3 == 0;
}

int main() {
    cin >> A >> B;

    for (ll i = A; i <= B; i++) {
        if (x(i) || y(i)) cout << i << endl;
    }
}