// This program illustrates a flag controlled while loop.
// Write a program that sums integers and stops and prints the sum when the sum exceeds 20.

#include <iostream>

using namespace std;

int main()
{
	int value, sum = 0;
	bool done = false;				// initialize

	while (!done)					// test
	{
		if (sum > 20)
		{
			done = true;			// modify
			cout << " thanks " << endl;
		}
		else
		{
			cout << endl << "Enter an integer: " ;
			cin >> value;
			sum += value;
		}
	}
	cout<< "The sum is " << sum << endl;

	return 0;
}