#include <bits/stdc++.h>
using namespace std;
#define int long long
#define rep(i,j)  for(int i=0; i<j; i++)
#define vi vector<int>
#define vvi vector<vector<int>>
#define sr(a) sort(a.begin(),a.end())

signed main(){
  int a,b; cin>>a>>b;
  for(int i=a; i<=b; i++){
  	if(i%3==0||i%10==3){
  		cout<<i<<endl;
  	}
  }
}