#include <iostream>
#include <string>

using namespace std;
int main(void){

    int a, b;
    cin >> a >> b;
    
    for(int i=a; i<=b; i++) {
        if((i%3 == 0) || (to_string(i).find("3") != string::npos)) {
            cout << i << endl;
        }
    }

    return 0;

}