// INSERT FILE NAME AND DESCRIPTION OF WHAT THE PROGRAM WILL DO HERE
// INSERT AUTHOR AND DATE HERE

#include <iostream>

using std::cout;
using std::cin;
using std::endl;

int main()
{

    double x = 0 ;
    double y = 0 ;
    double z = 0 ;
    double u = 0 ;
    double v = 0 ;


    // input
    cout << endl << endl;  // two blank lines
    cout << "People attending morning session"  << endl  ;
    cin >> x ;
    cout << endl << "People attending afternoon session" << endl  ;
    cin >> y;
    cout << endl << "People that will attend both sessions" << endl  ;
    cin >> z;
    cout << endl << "Fee of the Session" << endl  ;
    cin >> u;

    // algorithm Processing items
    v = u(x+y)+z*(u*.20) ;

    // output
    cout << "Amount Due: " << endl << u << endl ;
    // .....
    //  other stuff here but later as needed

	system("pause");
	return 0;
}