#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(n);i++)
#define MP make_pair
#define PB push_back
typedef long long ll;
int main(){
	ll a,b;
	cin>>a>>b;
	int cnt=0;
	for(ll i=a;i<=b;i++){
		if(i%3==0){
			cout<<i<<endl;
			cnt++;
		}else{
			ll k=i;
			while(0<k){
				if(k%10==3){
					cout<<i<<endl;
					break;
				}
				k/=10;
			}
		}
	}
	return 0;
}