您的答案為: Test #8: Symmetric.
正確答案為: Test #8: Non-symmetric.

您的答案為: Test #1: Symmetric.
正確答案為: Test #1: Non-symmetric.

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int t=sc.nextInt();
        for(int a=1;a<=t;a++) {
            String ch=sc.next(),mark=sc.next();
            int n = sc.nextInt();
            long array[] = new long[n*n];
            for (int i = 0; i < n*n; i++) {
                array[i] = sc.nextLong();
            }
            boolean ans=true;
            for (int i = array.length-1, j = 0; i > j; i--, j++) {
                if ((array[i] != array[j])||array[i]<0||array[j]<0) {
                    ans=false;
                    break;
                }
            }
            if(ans==true){
                System.out.println("Test #"+a+": Symmetric.");
            }
            else{
                System.out.println("Test #"+a+": Non-symmetric.");
            }
        }
    }
}