You will be given a definition of a task first, then some input of the task.
In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.

[[-8, 77], [36, 58]]
Output:
[77, 58]