#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<string>
#include<vector>
#include<list>
#include<set>
#include<map>
#include<queue>
#include<stack>
#include<cctype>
#include<climits>
#define ld long double
#define ll long long int
#define ull unsigned long long int
#define rep(i,n) for(i=0;i<n;i++)
#define fin(ans) cout<<(ans)<<endl
#define INF INT_MAX;
using namespace std;
template<class T> inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
const long long LLINF=1LL<<60;
//set<int>::iterator it;



int main(void){ios::sync_with_stdio(false);cin.tie(0);
//////////////////////////////////////////////////////
	
	ll i,a,b,t;
	cin>>a>>b;
	bool ch;
	for(i=a;i<=b;i++){
		if(i%3==0)cout<<i<<endl;
		else{
			ch=false;
			t=i;
			while(t>0){
				if(t%10==3){
					ch=true;
					cout<<i<<endl;
					break;
				}
				t/=10;
			}
		}
	}
	
//////////////////////////////////////////////////////
	return 0;
}