···

include [HTML_REMOVED]

using namespace std;
int main()
{
int n;
cin>>n;
string open_id,close_id,open_time,close_time;
for(int i=0;i[HTML_REMOVED]>id>>in_time>>out_time;
if(in_time<open_time||open_time.empty())
{
open_time=in_time;
open_id=id;
}
if(close_time<out_time||close_time.empty())
{
close_time=out_time;
close_id=id;
}
}

cout<<open_id<<' '<<close_id;
return 0;

}
```