C++ "setf" using "basefield"

//5.  Program to print of Hexa Decimal, Octal, Decimal No.
int main()
{
    int x = 65;   
   cout.width(20);
   cout.setf(ios::hex,ios::basefield);
   cout<<"\n Hexa -> "<   cout.setf(ios::oct,ios::basefield);
   cout<<"\n Octal -> "<   cout.setf(ios::dec,ios::basefield);
   cout<<"\n Dec -> "<
}