#include <bits/stdc++.h>
using namespace std;
#define all(x) x.begin(),x.end()
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
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;}
using ll = long long;

int a,b;

int main(){
    cin >> a >> b;
    for(int i=a;i<=b;i++){
        if(i%3==0) cout << i << endl;
        else{
            string s=to_string(i);
            if(count(all(s),'3')) cout << i << endl;
        }
    }
}