// Michael Redmond

#include <iostream>
#include <iomanip>
using namespace std;



int main () {
	const double taxRate = 0.07;

	bool done;
	double sum = 0;


	done = false;
	int cnt;
	cnt = 0;

	while (! done ) {
		cout << "Please enter a number between one and twenty (or -1 to stop)"
			<< flush;
		double num;
		cin >> num;
		if (num == -1) {
			done = true;
		}
		else {
			sum += num;
			cnt++;
		}
	}
	cout << endl << cnt << " numbers were entered, with a total of " << 
		sum << endl;

	cout << setw(10) << "Sum" << setw(10) << "Squared" << endl;
	cout << setw(10) << sum << setw(10) << sum * sum << endl;
	sum = sum * 1.1;
	cout << setw(10) << sum << setw(10) << sum * sum << endl;

	/// junk example
	cout << setw(10) << "Sum" << setw(10) << "Squared" << endl;
	for (int count = 0; count < 10; count++) {
		sum = sum * 1.1;
		cout << fixed << setprecision(2) << 
			setw(10) << sum << setw(10) << sum * sum << endl;
	}
	return 0;
}