#include <iostream>
using namespace::std;

int main () {
    int a,b,c;
    cin >> a;
    cin >> b;
    for ( ; a<=b; ++a) {
        if (a%3==0) {
            cout << a << endl;
        }
        else {
            for (c=a; c>=1; c=c/10) {
                if (c%10==3) {
                    cout << a << endl;
                }
            }
        }
    }
    return 0;
}