#include <stdio.h>

int main()
{
  int N, icase, x, y, w, h, i, xo, yo;
  int field[5][5], maxrect, isrect;

  freopen("rect.txt", "r", stdin);

  scanf("%d", &N);
  for (icase = 0; icase < N; icase++) {
    for (x = 0; x < 5; x++) {
      for (y = 0; y < 5; y++) {
        scanf("%d", &(field[x][y]));
      }
    }
    maxrect = 0;
    for (x = 0; x < 5; x++) {
      for (y = 0; y < 5; y++) {
        for (w = 1; x+w-1 < 5; w++) {
          for (h = 1; y+h-1 < 5; h++) {
            isrect = 1;
            for (xo = 0; xo < w; xo++) {
              for (yo = 0; yo < h; yo++) {
                if (!field[x+xo][y+yo]) { isrect = 0; goto Quit; }
              }
            }
          Quit:
            if (isrect) {
              if (maxrect < w*h) { maxrect = w*h; }
            }
          }
        }
      }
    }
    printf("%d\n", maxrect);
  }
  return 0;
}