#include<iostream>
using namespace std;
int main(void)
{
	long int i, a, b, t;
	cin >> a >> b;
	for (i = a; i <= b; i++) {
		if (i % 3 == 0)cout << i << endl;
		else {
			t = i;
			for (;t!=0;) {
				if (t % 10 == 3) {
					cout << i << endl;
					break;
				}
				else {
					t /= 10;
				}
			}
		}
	}

	return 0;
}