// https://omegaup.com/arena/problem/Demostrando-con-matrices
#include <stdio.h>

int main( ) {
   int v;
   scanf("%d", &v);

   for (int k = 0; k < v; ++k) {
      int n;
      scanf("%d", &n);

      int mat[n][n];
      for (int i = 0; i < n; ++i) {
         for (int j = 0; j < n; ++j) {
            scanf("%d", &mat[i][j]);
         }
      }

      int dedo = 1;
      for (int i = 0; i < n; ++i) {
         for (int j = 0; j < n; ++j) {
            if (mat[i][j] != mat[j][i]) {
               dedo = 0;
            }
         }
      }

      if (dedo == 1) {
         printf("Simétrica\n");
      } else {
         printf("No Simétrica\n");
      }
   }
}