#include<iostream>
#include<iomanip>
#include<cmath>
#include<string>
#include<algorithm>
#include<vector>
#include<math.h>

using namespace std;
int main(){
    long A, B; cin >> A >> B;
    for(int i = A; i <= B; i++){
        if(i % 3 == 0 || i % 10 == 3 || i / 10 == 3){
            cout << i << endl;
        }
    }
    return 0;
    }