#include <iostream>
#include <vector>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;


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