#include <stdio.h>
//Filippo De Maio
//Programma per sommare i numeri interi parte 2
int main(void) {
int n, somma = 0;
while (1) { scanf("%d", &n
); if (n >= 0) somma += n;
else break;
}
printf ("La somma dei numeri e': %d\n", somma
); return 0;
}
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