/**
 * Program to sum integers read from stdin (example of while loop).
 */
#include <stdio.h>
#include <stdlib.h> /* has EXIT_SUCCESS, EXIT_FAILURE */

int main(void) {
	int n;
	int sum = 0;
	/* slightly cryptic but C-idiomatic way to repeatedly read */
	printf("enter integers, anything else to stop\n");
	while (scanf("%d", &n) == 1) {
		sum +=n;
	}
	printf("sum %d\n", sum);
	return EXIT_SUCCESS;
}