#include <iostream>

// compile: c++ --std=c++17 hello_main.cc
auto main(int argc, char** argv) -> int {
  std::cout << "hello, have: " << argc << " args" << std::endl;
  for (int i = 0; i < argc; i++) {
    std::cout << " - " << argv[i] << std::endl;
  }
}