Write a python program that contains a function called filereader() that takes a number n (int) and filename (string) as input. The function should read and store every nth line of the file in a list. The function should return the list. Test your function using the main function (don’t forget the main guard). Example: File: kangaroo capybara wombat koala wallaby quokka platypus dingo kookaburra n: 3 output: wombat quokka kookaburra

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Stack operations

A stack is a linear data structure that follows certain order to perform the operation; the order will be LIFO (Last In First Out) data structure. In the stack data structure elements/items are removed and added only from the top. The topmost stack item/element is pointed by the top pointer and the element which is added to the stack first will get deleted at the last.