#include <iostream>
#include <vector>
#include <map>
#include <array>

using namespace std;
template<class T> int maxReturn(T a, T b) {if (a > b) {return a;} else {return b;}}
template<class T> int minReturn(T a, T b) {if (a < b) {return a;} else {return b;}}

int main(void){
    int A,B;
    string ans = "";
    cin >> A >> B;
    
    for (int i = A; i <= B; i++) {
        if (i % 3 == 0) {
            ans += to_string(i) + "\n";
        } else {
            string tmp  = to_string(i);
            size_t count = tmp.length();
            for (int j = 0; j < count; j++) {
                if (tmp[j] == '3') {
                    ans += tmp + "\n";
                    break;
                }
            }
        }
    }
    cout << ans << endl;
}