#include <iostream>
#include <cmath>

using namespace std;

inline int powi(int n, int m) {
    int product = 1;
    for (int i = 0; i < m; i++) {
        product *= n;
    }
    return product;
}

inline bool check_three(int n) {
    int digit, unit;

    if (n % 3 == 0) return true;

    digit = log10(n) + 1;
    for (int i = 0; i < digit; i++) {
        unit = n % powi(10, i+1) / powi(10, i);
        if (unit == 3) return true;
    }

    return false;
}

int main(int argc, char const* argv[]) {
    int A, B;

    cin >> A >> B;

    for (int i = A; i < B+1; i++) {
        if (check_three(i)) cout << i << endl;
    }
    return 0;
}