#include <bits/stdc++.h>

bool sub1(long a) {
  while( a != 0 ) {
    if( a % 10 == 3 ) {
      return true;
    }
    a /= 10;
  }
  return false;
}

int main() {

  long A, B;

  std::cin >> A >> B;

  for(int i = A; i <= B; ++i) {
    if( i % 3 == 0 || sub1(i) ) {
      std::cout << i << std::endl;
    }
  }
  
  
  return 0;
}