Problem Description Your task is to calculate the sum of some integers.
Input Input contains an integer N in the first line, and then N lines follow. Each line starts with a integer M, and then M integers follow in the same line.
Output For each group of input integers you should output their sum in one line, and you must note that there is a blank line between outputs.
Sample Input 3 4 1 2 3 4 5 1 2 3 4 5 3 1 2 3
Sample Output 10
15
6
代码语言：javascript复制import java.util.*;
class Main{
public static void main(String args[]){
Scanner sc = new Scanner(System.in);
boolean isFirst = true;
int m=sc.nextInt();
while(m-->0){
int n=sc.nextInt();
int sum=0;
for(int i=0;i<n;i ){
int a=sc.nextInt();
sum =a;
}
if(isFirst){
isFirst=false;
}else{
System.out.println();
}
System.out.println(sum);
}
}
}
