#include <bits/stdc++.h>
#define REP(i, n) for(int i = 0; i < n; i++)
#define REPR(i, n) for(int i = n; i >= 0; i--)
#define FOR(i, m, n) for(int i = m; i < n; i++)
#define INF 2e9
#define ALL(v) (v).begin(), (v).end()
using namespace std;
typedef long long ll;
int GCD(int a,int b){return b?GCD(b,a%b):a;}
int LCM(int a,int b){return (a*b)/GCD(a,b);}
int abs(int x){return x>0?x:-x;}
 
//const int dx[] = {1, 0, -1, 0, 1, -1, -1, 1};
//const int dy[] = {0, 1, 0, -1, 1, 1, -1, -1};

int main()
{
	int a, b;
	cin >> a >> b;

	for (int now = a; now <= b; now++){
		if (now % 3 == 0){
			cout << now << endl;
		}
		else {
			string s = to_string(now);
			bool flag = 0;
			REP(i, (int)s.size()){
				if (s[i] == '3'){
					flag = 1;
					break;
				}
			}
			if (flag) cout << now << endl;
		}
	}

}