// Unset Fixed Format
 // unsetf.cpp

 #include <iostream>
 using namespace std;

 int main() {
     double pi = 3.141592653;
     cout << "1234567890" << endl;
     cout.width(10);
     cout.setf(ios::fixed);
     cout << pi << endl;
     cout.unsetf(ios::fixed);
     cout.setf(ios::scientific);
     cout << pi << endl;
     cout.unsetf(ios::scientific);
     cout.setf(ios::left);
     cout << pi << endl;
     cout.unsetf(ios::left);
     cout.setf(ios::right);
     cout.width(10);
     cout << pi << endl;
     cout.unsetf(ios::right);
     return 0;
 }