#include <iostream>
#include <algorithm>
#include <cstdio>
#include <string>

using namespace std;

int main()
{
    int Cases,n;
    string tmp;
    long long int a[101][101];
    cin>>Cases;
    for (int cases = 1 ;cases <= Cases;cases++){
        bool flag = true;
        cin>>tmp>>tmp>>n;
        for (int i = 1 ;i <= n ; i++){
            for (int j = 1; j <= n ;j++)
                cin>>a[i][j];
        }
        for (int i = 1;i <= n;i++) for (int j = 1;j <= n ; j++) if (a[i][j]<0)flag = false;
        for (int i = 1;i <= n;i++){
            if (flag == false)break;

        }
        int i =1; //3cahn yt2ry fl loop ly t7t
        for (int j = 1; j <= n ; j++){
            if (a[i][j] != a[n + 1 - i][n + 1 - j]){
                flag = false ;  break;
//i++ low3zz tzwd y3ny

            }
        }
        if (flag)cout << "Test #"<<cases<<":"<<" symmetric"<<endl;
        else cout << "Test #"<<cases<<":"<<" Non-symmetric"<<endl;

    }
    return 0;
}