#include <bits/stdc++.h>

using namespace std;

int main(){
        long long int A,B;
        cin>>A>>B;
        vector<long long int>data;
        for (long long int i = A; i <= B; i++) {
                if(i%3==0){
                        data.push_back(i);
                }else{
                        long long int j=i;
                        while(j){
                                if(j%10==3){
                                        data.push_back(i);
                                        break;
                                }
                                j/=10;
                        }
                }
        }
        for(auto x:data){
                cout<<x<<endl;
        }
        return 0;
}