#include <iostream>
#include <cmath>
using namespace std;
bool check3(unsigned long* num,const unsigned int start,const unsigned int end = 0);
int main(){
    unsigned long a;
    unsigned long b;
    cin >> a >> b;
    for (;a<=b;a++){
      if (!(a%3) || check3(&a,1)) cout << a << endl;
    }
    
}
inline bool check3(unsigned long* num,const unsigned int start,const unsigned int end){
 
 for (unsigned int d = start; d <= ((end) ? end : floor(log10(*num)) + 1); d++){
  if ( 3 == floor(*num/pow(10,d-1)) - floor(*num/pow(10,d))*10) return true;
 }   
 
    return false;
}