why [1,4,1,3,1,-14,1,-13] return false. it shoudl be true for i = 1, j = 3, k = 6 match.

[1,4,1,3,1,-14,1,-13]

i = 1, j = 3, k = 6

sum(0, i - 1) = sum(0, 0) = 1

sum(i + 1, j - 1) = sum(2, 2) = 1

sum(j + 1, k - 1) = sum(4, 5) = 1 + (-14) = -13

sum(k + 1, n - 1) = sum(7, 7) = -13