t = int(input())
for a in range(1, 11):
# n : 배열 크기 / m : 파리채 크기
n, m = map(int, input().split())
arr = [list(map(int, input().split())) for _ in range(n)]
hit = 0
for i in range(n - m + 1):
for j in range(n - m + 1):
pari = 0
for k in range(m):
for p in range(m):
pari += arr[i + k][j + p]
hit = max(hit, pari)
print(f"#{a} {hit}")