#include <stdio.h>

int main()
{
	int	sum = 0;
	int	k;

	for (k = 1; ; k++) {
		sum += k;
		printf("k=%d sum=%d\n", k, sum);
		if (1000 < sum) {
			break;
		}
	}
	printf("k=%d\n", k);

	return 0;
}