#include <bits/stdc++.h>
using namespace std;

bool nabeatsu (int n);
bool have3 (int n);

int main () {

    int a, b;
    cin >> a >> b;

    for (int i = a; i <= b; i++) {
        if (nabeatsu(i)) {
            cout << i << endl;
        }
    }

    return 0;
}

bool nabeatsu (int n) {

    if (n % 3 == 0 || have3(n)) return true;
    else return false;
}

bool have3 (int n) {

    while (n > 0) {
        if (n % 10 == 3) return true;

        n /= 10;
    }

    return false;
}