#include "stdio.h"
int main()
{
 int n,k,i,j,m;
 while(scanf("%d",&n)!=EOF)
 {
 	while(n--)
 	{
 		scanf("%d",&k);
 		j=0;m=k;
 		while(m--)
 		{
 			scanf("%d",&i);   
 			j+=i;
 		}
 		printf("%d\n",j-k+1);
 	}
 }
 return 0;
}