#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<int,int>;
#define rep2(i,a,n) for(int i = (a);i < (n);i++)
#define rep(i,n) rep2(i,0,n)
#define INF (1LL << 60)

int main(void){
    ll a,b;
    cin >> a >> b;
    
    for(ll i = a;i <= b;i++){
        if(i % 3 == 0){
            cout << i << endl;
        } else {
            bool check = false;
            string s = to_string(i);
            
            rep(j,s.size()){
                if(s[j] == '3')check = true;
            }
            
            if(check)cout << i << endl;
        }
    }
}