#include <iostream>

bool judge(int x) {
    if (x % 3 == 0) return true;
    while (x > 0) {
        if (x % 10 == 3) return true;
        x /= 10;
    }
    return false;
}

void solve() {
    int a, b;
    std::cin >> a >> b;
    for (int x = a; x <= b; ++x) {
        if (judge(x)) std::cout << x << std::endl;
    }
}

int main() {
    std::cin.tie(nullptr);
    std::cout.tie(nullptr);
    std::ios::sync_with_stdio(false);

    solve();

    return 0;
}