/* package codechef; // don’t place package name! */
import java.util.;
import java.lang.;
import java.io.*;
/* Name of the class has to be “Main” only if the class is public. */
class Codechef
{
public static void main (String[] args) throws java.lang.Exception
{
Scanner sc = new Scanner(System.in);
int t = sc.nextInt() ;
while(t-- > 0){
int n = sc.nextInt() ;
int arr[] = new int[n] ;
for(int i = 0 ; i < n ; i++){
arr[i] = sc.nextInt() ;
}
int min = Integer.MAX_VALUE ;
int total = 0 ;
for(int i = 0 ; i < n ; i++){
int curr_min = arr[i] ;
min = Math.min(curr_min , min);
total = total + min ;
}
System.out.println(total);
}
}
}
