def maximum_sum_sublist(lst, k):
result = 0
size = len(lst)
for i in range(size + 1):
for j in range(i):
if len(lst[j:i]) == k:
result = max(result, sum(lst[j:i]))
return result
lst = [1, -2, 2, -3, 4, -1, -1, 2, 3, -5, 4] # -1 + 2 + 3 = 4
k = 3
print(maximum_sum_sublist(lst, k))
'''
run:
4
'''