IOST18

 #include <iostream>
#include <iomanip>
using namespace std; 
int main () { 
  double a,b;
  int c,d;
   cin>>a>>b>>c>>d;
   cout.setf(ios::showpos);
  cout<<"SHOWPOS : "<<showpos<<a<<"\n";
  cout.setf(ios::showpoint);
  cout<<"Showpoint : "<<setprecision(6)<<showpoint<<b<<"\n";
  cout.setf(ios::hex);
  cout<<hex<<"Hexadecimal is : " <<c<<"\n";
  cout.setf(ios::uppercase);
  cout<<"UPPER CASE : "<<uppercase<<d;
  return 0; 
}