#include <iostream>

void main (char * argv[], int argc) 
{

  double X = 123456.12;
  cout << ios::fixed 
       << X << '\n'
       << ios::scientific << X << '\n'
       << ios::uppercase  << X << endl;

  cout << ios::showpos << 123 << '\n'
       << 123 << '\n';
  
  double Z = 21.2351;
  cout.precision(2);
  
  cout << ios::fixed 
       << Z << "\n";
  cout.precision(4);
  cout << Z;
  
  /*  cout << true << '\n'
       << ios::boolalpha << true << '\n'
       << ios::noboolalpha << true << '\n';
  */

  X = 123.45;
  cout <<setw(10)<< X << '\n'
       << setfill('*') 
       << setw(10) << X << '\n';
 
  cout << ios::left << setw(10) << 123 
       << "*\n"
       << ios::right << setw(10) << 123
       << "*\n";

  cout << ios::showbase << ios::uppercase
       << dec << 255 << '\n' 
       << hex << 255 << '\n' 
       << oct << 255 << '\n';
}