#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (n); i++)
using namespace std;
using P = pair<int, int>;
using ll = long long;

int main(){
	ll a, b;
	cin >> a >> b;
	
	for(int i = a; i <= b; i++){
		int t = i;
		bool ok = false;
		while(t > 0){
			if(t%10 == 3) ok = true;
			t /= 10;
		}
		
		if(i%3 == 0 || ok) cout << i << endl;
	}
}