#include<iostream>
using namespace std;

int main(){
    int a, b;
    cin >> a >> b;
    for (int i = a;i <= b; i++){
        int elem = i;
        if (elem % 3 == 0){
            cout << i << endl;
        }
        while(1){
            if (elem % 10 == 3){
                cout << i << endl;
                break;
            }
            if (!( elem = elem / 10)){
                break;
            }
        }
    }
    return 0;
}