text: // Write your code here
  #include <iostream>
  
  void hello()
  {
  	std::cout << "Hello, world!" << std::endl;
  }
  
  int sum(int a, int b)
  {
  	return a + b;
  }
  
  void modify(std::string &str)
  {
  	str += "QAQ";
  }
  
  // CNI Registrations
  #include <covscript/cni.hpp>
  #include <covscript/dll.hpp>
  
  CNI_ROOT_NAMESPACE {
  	CNI(hello)
  	CNI(sum)
  	CNI(modify)
  }