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

long long a, b;
bool f;

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

	for (long long i = a; i <= b; i++) {
		long long u = i;
		f = 0;

		if (i % 3 == 0)
			f = 1;
		else {
			while (u > 0) {
				if (u % 10 == 3) {
					f = 1;
					break;
				}

				u /= 10;
			}
		}

		if (f)
			cout << i << endl;
	}
}