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

int main() {
    int start, end;
    int ans;
    int tmp;

    cin >> start >> end;
    for (int i = start; i <= end; i++){
        if (i % 3 == 0){
            cout << i <<"\n";
        }
        else {
            tmp = i;
            while (true) {
                if (tmp % 10 == 3) {
                    cout << i <<"\n";
                    break;
                }
                tmp = tmp / 10; 
                if (tmp == 0){
                    break;
                }
            }
        } 
    }

    return 0;
}