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

int main(){
	int a,b;
	string tmp;
	cin >> a >> b;

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