#include<iostream>

using namespace std;

bool isThree(int n){
    while(1){
        if(n % 10 == 3){
            return true;
        }
        n /= 10;
    }
}

int main(){
    int A, B;
    cin >> A >> B;
    while(A <= B){
        if(A % 3 == 0 || isThree(A)){
            cout << A << endl;
        }

        A++;
    }

    return 0;
}