#include <iostream>

using namespace std;

int main(){
	int a,b;
	cin >> a;
	cin >> b;
	int i,j;
	
	for(i = a; i <= b; i++){
		if(i%3 == 0){
			cout << i << endl;
		}else{
			int num = i;
			while(num){
				if(num%10 == 3){
					cout << i << endl;
					break;
				}
				num /= 10;
			}
		}
	}
	
	return 0;
}