#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<cctype>
#include<cstdlib>
#include<algorithm>
#include<bitset>
#include<vector>
#include<list>
#include<deque>
#include<queue>
#include<map>
#include<set>
#include<stack>
#include<cmath>
#include<sstream>
#include<fstream>
#include<iomanip>
#include<ctime>
#include<complex>
#include<functional>
#include<climits>
#include<cassert>
#include<iterator>
using namespace std;
long long int a;
long long int b;
int main(){
	scanf("%lld%lld", &a, &b);
	for (long long int i = a; i <= b; i++){
		if (i % 3LL == 0){
			printf("%lld\n", i);
			continue;
		}
		stringstream ss;
		ss << i;
		string k = ss.str();
		if (k.find('3') != string::npos){
			cout << k << endl;
		}
	}
	return 0;
}