Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['Q', '9205', 'F', 'q', '6479', '9601', 'f', '9981', 'K']

17, 9205, 6, 17, 6479, 9601, 6, 9981, 11