#include <iostream>
#include <string>

int main(){
  long A,B;
  std::cin >> A >> B;

  for(auto i = A; i <= B; ++i){
    if((0 == i%3) || std::string::npos != std::to_string(i).find('3')){ std::cout << i << std::endl; }
  }
  
  return 0;
}