from functools import reduce
lst = [[1, 2, 3, 4, 5], [4, 5, 6, 7, 8, 9], [7, 8, 9, 10]]
print(reduce(lambda x, y: x + y[1], lst, 0))

2038e9de485cdbfe37ca86c72d3c1586158f8a58
<mask token>

<mask token>
print(reduce(lambda x, y: x + y[1], lst, 0))

<mask token>
lst = [[1, 2, 3, 4, 5], [4, 5, 6, 7, 8, 9], [7, 8, 9, 10]]
print(reduce(lambda x, y: x + y[1], lst, 0))

from functools import reduce
lst = [[1, 2, 3, 4, 5], [4, 5, 6, 7, 8, 9], [7, 8, 9, 10]]
print(reduce(lambda x, y: x + y[1], lst, 0))
