max_sum_submatrix3x3_in_matrix

from sys import maxsize

rows, cols = [int(n) for n in input().split()]

matrix = [[int(n) for n in input().split()] for i in range(rows)]

max_sum = -maxsize
max_submatrix = []

for i in range(rows - 2):
    for j in range(len(matrix[i]) - 2):
        current_submatrix = [matrix[i][j], matrix[i][j+1], matrix[i][j+2],
                             matrix[i+1][j], matrix[i+1][j+1], matrix[i+1][j+2],
                             matrix[i + 2][j], matrix[i + 2][j + 1], matrix[i + 2][j + 2]]
        current_sum = sum(current_submatrix)
        if current_sum > max_sum:
            max_sum = current_sum
            max_submatrix = current_submatrix.copy()

print(f"Sum = {max_sum}")
print(*max_submatrix[:3])
print(*max_submatrix[3:6])
print(*max_submatrix[6:])