#include <iostream>
#include <string>
using namespace std;

int main() {
	
	long int a,b;
	cin >> a >> b;
	for(int i = a; i <= b; i++) {
		string s = to_string(i);
		
		if(i % 3 == 0 || (s.find("3") != string::npos)) 
			cout << i << endl;
	}
	
}