> #include <iostream>
> #include <iomanip>
> using namespace std;
> int main()
> {
> 	int n;
> 	
> 
> 	bool b=false;
> 	while(cin>>n)
> 	{
> 		if(b==false)
> 		{
> 			cout<<"Cards  Overhang "<<endl;
> 			b=true;
> 		}
> 		float f=0;  --------------------------------->double
> 		for(int i=1;i<n||i==n;i++)
> 		{	
> 			f+=1.0/(2*(i));
> 		}
> 		if(n<4)
> 		cout<<setw(5)<<n<<"  "<<setw(8)<<showpoint<<std::setprecision(3)<<f<<endl;
> 		else
> 			cout<<setw(5)<<n<<"  "<<setw(8)<<showpoint<<std::setprecision(4)<<f<<endl;
> 				
> 	}
> 	return 0;
> }
>