#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; ++i)
using ll = long long;
using namespace std;
const int INF = 1e9;

int main() {
    int A, B;
    cin >> A >> B;

    for (int i = A; i <= B;++i){
        string s = to_string(i);
        bool flag = (i % 3 == 0);

        if(!flag){
            rep(i, s.size()) if (s[i] == '3')
                flag = true;
        }

        if(flag)
            cout << i << "\n";
    }

        return 0;
}