#include <stdio.h>

int main() {

int x = -1;
int sum =0;
int i = 0;

 printf("Enter a number:>>");
 scanf("%d", &x);

while (x != 0) {

 sum = sum+x;
 i = i+1;
 printf("Sum of %d numbers is %d\n",i, sum);
 printf("Enter a number:>>");
 scanf("%d", &x);

}

 return 0;


}