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

bool check(int num)
{
    bool res = false;
    while (num > 0) {
        if (num % 10 == 3) {
            res = true;
        } else if (num % 3 == 0) {
            res = true;
        }

        num = num / 10;
    }
    return res;
}

int main()
{
    int a, b;
    cin >> a >> b;

    for (int i = a; i <= b; i++) {
        if (check(i)) {
            cout << i << "\n";
        }
    }

    return 0;
}