#include<iostream>
using namespace std;
int ok(int a){
	if (a % 3 == 0) return 1;
	while (a > 0){
		if (a % 10 == 3) return 1;
		a /= 10;
	}
	return 0;
}
int main(){
	int a, b;
	cin >> a >> b;
	while (a <= b){
		if (ok(a)){ cout << a << endl; }
		++a;
	}
	return 0;
}