#include <algorithm>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <iostream>
#include <map>
#include <memory>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <utility>
#include <vector>
 
using namespace std;
 
#define sz size()
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(c) (c).begin(), (c).end()
#define rep(i,a,b) for(long long i=(a);i<(b);++i)
#define clr(a, b) memset((a), (b) ,sizeof(a))
 
#define MOD 1000000007

int main(){
  long long a,b;
  cin>>a>>b;
  rep(i,a,b+1){
    long long n = i;
    if(n%3==0){
      cout << n << endl;
      continue;
    }
    for(long long j = n; j > 0; j /= 10){
      if(j%10==3){
        cout << n << endl;
        break;
      }
    }
  }
  return 0;
}