#include<bits/stdc++.h>
using namespace std;

int a, b;

int main(){

  cin >> a >> b;

  for(int i=a;i<=b;i++){
    if(i%3 == 0) cout << i << endl;
    else{
      int p = i;
      while(p){
	if(p%10 == 3){
	  cout << i << endl;
	  break;
	}
	p /= 10;
      }
    }
  }

}