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    My Attempt :)

    A = []
    S = []
    [A.append(list(map(int, input().split()))) for i in range(6)]
    [S.append(sum(A[i][j:j+3]+A[i+2][j:j+3])+A[i+1][j+1]) for i in range(4) for j in range(4)]
    print(max(S))