#include<iostream>
using namespace std;

int main(){
  int a, b;
  cin >> a >> b;
  
  int i, x(0), y(0);
  int xcheck(0), ycheck(0);
  for(i=a;i<=b;i++){
    //MULTIPLE OF THREE
    xcheck = 0;
    if(i%3 == 0)
      xcheck = 1;
    

    //HAVE THREE
    int tmp = i;
    ycheck = 0;
    do{
      if(tmp%10 == 3)
	ycheck = 1;
      
      tmp /= 10;
    }while(tmp > 0);

    if(xcheck || ycheck)
      cout << i << endl;
    
  }
  return 0;
  
}