#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <string>
#include <vector>
#include <functional>

struct Sekai{
  long long int A;
  long long int B;
};

int main(){
  Sekai s;
  std::cin >> s.A >> s.B;
  for(long long int i = s.A; i <= s.B;i++){
    if((i % 3 == 0) || (i % 10 == 3))
      std::cout << i << std::endl;
  }
}