#include<bits/stdc++.h>
using namespace std;
int main(){
    long a,b;
    cin >> a >> b;
    for(int i=a; i<=b; i++){
            if(i%3==0) cout << i << endl;
            else if(i%10==3) cout << i << endl;
            else if((i/10)%10==3) cout << i << endl;
            else if((i/100)%10==3) cout << i << endl;
            else if((i/1000)%10==3) cout << i << endl;
            else if((i/10000)%10==3) cout << i << endl;
            else if((i/100000)%10==3) cout << i << endl;
            else if((i/1000000)%10==3) cout << i << endl;
            else if((i/10000000)%10==3) cout << i << endl;
            else if((i/100000000)%10==3) cout << i << endl;
            else if((i/1000000000)%10==3) cout << i << endl;
            else if((i/10000000000)%10==3) cout << i << endl;
    }
}