#include <iostream>

using namespace std;

int main()
{
	int a, b, stock = 0;

	cin>>a>>b;
	
	while(a<=b) {

		stock = a;

		if(!(a%3)) {
			cout<<a<<endl;
		}
		else while(stock>0) {
			if(stock%10 == 3) {
				cout<<a<<endl;
				break;
			}
			stock /= 10;
		}

		a++;
	}

	return 0;
}