#include <iostream>

bool is_contains_three(int i) {
  return std::to_string(i).find("3") != std::string::npos;
}

int main() {
  int n, m;
  std::cin >> n >> m;
  for (int i = n; i <= m; i++) {
    if (i % 3 == 0) {
      std::cout << i << std::endl;
    } else if (is_contains_three(i)) {
      std::cout << i << std::endl;
    }
  }
}