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

//Sum of the integers from 1 to 100 inclusive.

int main()
{
	int n {1000000000};   //Compute the sum of the integers from 1 to n inclusive.
	int sum {0};

	for (int i {1}; i <= n; ++i) {  //++i means i = i + 1
		sum += i;               //sum += i means sum = sum + i
	}

	cout << "The sum of the numbers from 1 to " << n << " inclusive is "
		<< sum << ".\n";

	return EXIT_SUCCESS;
}