A+B for Input-Output Practice (IV)
#include <stdio.h>
int main()
{
int n, x, sum;
while((scanf("%d",&n)!=EOF)&&(n!=0))
{
sum=0;
while(n--)
{
scanf(" %d",&x);
sum=sum+x;
}
printf("%d\n",sum);
}
return 0;
}