#include <algorithm>
#include <cstdio>
#include <iostream>
#include <string>
#include <vector>
#include <map>
#define rep(i,n) for (int i=0; i<n; ++i)
#define FOR(i,a,b) for (int i=a; i<b+1; ++i)
#define pb(x) push_back(x)
#define ll long long
using namespace std;

int main () {
  int a,b;
  cin>>a>>b;
  FOR(i,a,b) {
    if (i%3==0) {
      cout << i <<endl;
    } else {
      int tmp = i;
      while(tmp>0) {
         if(tmp % 10==3) {
            cout <<i<<endl;
            break;
         }
        tmp /=10;
       }
    }
  }
  return 0;
}