#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 << endl;
			continue;
		}	
		int tmp = i;
		while(tmp!=0){
			if(tmp%10==3){
				cout << i << endl;
				break;
			}
			tmp /= 10;
		}
	}		
	return 0;
}