#include <iostream.h>

float calculateCharges(float);

float main()
{
	float a,b,c;
    float total1;
	cout << "Enter the cars' hour:";
	cin >> a;
	cin >> b;
	cin >> c;
	total1 = a + b + c;
	cout << "Car\tHours\tCharge" << endl;
	cout << "1\t" << a << "\t" << calculateCharges(a) << endl;
	cout << "2\t" << b << "\t" << calculateCharges(b) << endl;
	cout << "3\t" << c << "\t" << calculateCharges(c) << endl;
	cout << "TOTAL\t" << total1 << "\t" << calculateCharges(a) + calculateCharges(b) + calculateCharges(c) << endl; 
	return 0;
}

float calculateCharges(float d)
{
	if ( d <= 3.0 )
		return 2;
	else if ( d <= 21 )
		return ( d - 3 ) / 2 + 2;
	else 
		return 10;
}