#define _CRT_SECURE_NO_WARNINGS
#include <string>
#include <vector>
#include <deque>
#include <map>
#include <set>
#include <cstdio>
#include <cctype>
#include <cmath>
#include <cstdlib>
#include <algorithm>
#include <functional>
#include <iostream>
#include <utility>
#include <sstream>
#include <cstring>
#include <bitset>
#include <climits>
 
using namespace std;
#define  AS(arr)  (sizeof(arr)/sizeof(arr[0]))
#define ALL(c) (c).begin(),(c).end() 
#define SIZE(a) int((a).size())
#define EACH(it,c) for(__typeof((c).begin()) it=(c).begin();it!=(c).end();++it)
#define REP(i,n) for(int i=0;i<(int)n;++i)
typedef vector<int> VI;
typedef vector<string> VS;
typedef long long LL;
int main(void){
    int A, B;
    cin >> A >> B;
    for(int i=A; i<=B; i++)
    {
        string s = to_string(i);
        if(i % 3 == 0 || s.find("3") != string::npos)
        {
            cout << i << endl;
        }
    }
}