Write a program called p1.py that contains a function called filereader() that takes a number n (int) and a filename (string) as input. The function should read and store every nth line of the file in a list and return it.Test your function inside the main function (don’t forget the main guard). Sample output with “samplefile_t8.txt” file. It contains the following lines of text. kangaroo, 5 capybara, 7 wombat, 2 koala, 3 wallaby, 4 quokka, 5 platypus, 9 dingo, 2 kookaburra, 1 >>> filereader(“samplefile_t8.txt”, 3) returns [“wombat, 2”, “quokka, 5”, “kookaburra, 1”]

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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.