#include <iostream>
using namespace std;

int main() {
	int sum,number;
	sum = 0;
	number =1;
	
	while( number <= 1000)
	{
		sum = sum + number;
		number = number + 1;
	}
	cout << "The sum of the first 1000 integer starting from 1 is" << sum << endl;
	return 0;
}