#include <iostream>
using namespace std;

int main(void){
    int A, B, tmp;
    
    cin >> A >> B;
    while(A<=B){
        if(!(A%3)) cout << A << endl;
        else{
            for(tmp=A; tmp; tmp/=10)
                if(tmp%10 == 3){
                    cout << A << endl;
                    break;
                }
        }
        A++;
    }

    return 0;
}