#include <algorithm>
#include <iostream>
#include <iomanip>
#include <limits.h>
#include <map>
#include <math.h>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include <stack>

using namespace std;
#define rep(i, n) for (int i = 0; i < n; i++)
#define rep1(i, n) for (int i = 1; i < n + 1; i++)
#define all(A) A.begin(), A.end()
#define itr(A, l, r) A.begin() + l, A.begin() + r
#define debug(var) cout << #var << " = " << var << endl;
typedef long long ll;

int main(void)
{
    int a, b;
    cin >> a >> b;
    for (int i = a; i <= b; i++)
    {
        if (i % 3 == 0)
        {
            cout << i << endl;
            continue;
        }
        int n = i;
        map<int, int> check;
        while (n > 0)
        {
            check[n % 10]++;
            n /= 10;
        }
        if (check[3] > 0)
        {
            cout << i << endl;
        }
    }
}