#include<iostream>
using namespace std;

int main(){
    long long a,b,d;
    cin>>a>>b;
    auto check=[&](){
        d=1;
        while(d<=a){if((a/d)%10==3)return true;d*=10;}
        return false;
    };
    while(a<=b){
        if(a%3==0||check()){
            cout<<a<<endl;
        }
        a++;
    }
}