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

int main() {
    int a,b;
     cin >> a >> b;
     int count = 0;
     int ten = 1;
     
     for(int i=a; i<=b; i++){
      if(i%3 == 0) count++;
      for(int j=1; j<=9; j++){
          ten *= 10;
          if((i - i%ten)/ten == 3) 
          count++;
      }
      if(count>0) cout << i << endl;
      count = 0;
      ten = 1;
     }
     
	return 0;
}