#include <stdio.h>

 int main()

 {

     int T,n;

     int a,sum=;

     while(scanf("%d",&T)!=EOF){

         while(scanf("%d",&n)!=EOF){

             int i;

             for(i=;i<n;i++){

                 scanf("%d",&a);

                 sum+=a;

             }

             printf("%d\n",sum);

             sum=;

         }

     }

     return ;

 }