#include <iostream>

int main(void){
  long a, b;
  long x[2000000000];

  std::cin >> a >> b;
  for(int i=a;i<b+1;i++){
    x[i]=i;
    if(x[i]%3==0){
      std::cout << x[i] << std::endl;
    }
    else{
      std::string str= std::to_string(x[i]);
      if(str.find("3") != std::string::npos){
        std::cout << x[i] << std::endl;
      }
    }
  }
}