#include<bits/stdc++.h>
#define endl '\n'
#define MAXN 100000
using namespace std;

typedef unsigned long long ll;

int main()
{
    ll a, b;
    cin >> a >> b;
    for(ll i = a; i <= b; i++)
    {
        if(i % 10 == 3 || i % 3 == 0)
            cout << i << endl;
    }
    return 0;
}