#include <iostream>
#include <math.h>

int main()
{
	double x;
	char answer;

	cout << "Hello" << endl;

	do 
	{
		cout << "Enter number? ";
		cin >> x;

		cout << "The square root of " << x << " is " << sqrt(x) << endl;

		do 
		{
			cout << "Do you want to take the sqrt of another number?  Enter y or n. ";
			cin >> answer;
		} while (answer != 'y' && answer != 'n');
	}
	while (answer == 'y');

	cout << "Good bye" << endl;
}