import java.util.*;
import java.lang.*;
 
class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner tekst=new Scanner(System.in);
		int t=tekst.nextInt();
		int tablica[]= new int[t];
		if(t>0 && t<100)
		{
			for (int k=0; k<t; k++)
			{
				Scanner tekst2=new Scanner(System.in);
				int n=tekst2.nextInt();
				Scanner tekst1=new Scanner(System.in);
				String tek=tekst1.nextLine();
				String tablica1[]=tek.split(" ");
				int suma=0;
				for (int y=0; y<n; y++)
				{
					int x=Integer.parseInt(tablica1[y]);
					suma+=x;
				}
				tablica[k]=suma;
				}
			}
			for(int i=0; i<t; i++)
			{
				System.out.println(tablica[i]);
			}
	}
}

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