#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define endl "\n"

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

    for (int i = a; i <= b; ++i) {
        bool flag = false;
        if (i % 3 == 0) {
            flag = true;
        }
        int t = i;
        while (t) {
            if (t % 10 == 3) {
                flag = true;
                break;
            }
            t /= 10;
        }
        if (flag) {
            cout << i << endl;
        }
    }

    return 0;
}