#include <iostream>
using namespace std;
int main(void){
    // Here your code !
    ios::sync_with_stdio(false);

    int A, B;
    cin >> A >> B;
    for(int i=A;i<=B;i++){
        int j = i;
        bool three = false;
        if(i%3==0){
            cout << i << endl;
            continue;
        }
        while(j>0){
            if((j%10)==3){
                three = true;
                break;
            }
            j/=10;
        }
        if(three){
            cout << i << endl;
        }

    }
    return 0;
}