#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using ll=long long;
using ld=long double;
using vll=vector<ll>;
using pll=pair<ll,ll>;


int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
    ll A,B;
    cin>>A>>B;
    for(int x=A;x<=B;++x){
        ll i=x;
        if(i%3==0){cout<<i<<endl;continue;}
        bool good=false;
        while(i>0){
            if(i%10==3){good=true;break;}
            i/=10;
        }
        if(good)cout<<i<<endl;
    }
}