/**
*    author:  boutarou
*    created: 02.08.2020 11:12:37
**/

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < int(n); i++)
using ll = long long;
using P = pair<int, int>;

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

int main() {
    ll a, b;
    cin >> a >> b;
    for (ll i = a; i <= b; i++) {
        if (check(i)) {
            cout << i << endl;
        }
    }
    return 0;
}