#include <bits/stdc++.h>
using namespace std;

bool f(int a){
    while(a){
        if(a%10==3)return 1;
        a/=10;
    }
    return false;
}

signed main(){
    int a,b;cin>>a>>b;
    for(int i=a;i<=b;i++){
        if(i%3==0)cout<<i<<endl;
        else if(f(i))cout<<i<<endl;
    }
}