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

int main(){
	int a,b;
	cin >> a >> b;
	for(int i = a; i < b; i++){
		if(i % 3 == 0) {
			cout << i << "\n";
			continue;
		}
		int temp = i;
		while(temp !=0){
			if(temp % 10 == 3){
				cout << i << "\n";
				break;
			}
			temp /=10;
		}
	}
	return 0;
}