黃宇綸

#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
  int score=50;
  if (score<40)
  
{  
cout<<"yes"<<endl;
}
  else
{
cout<<"no"<<endl;
}
  cout<<""<<endl;
  system("pause");
  return 0;   
}