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: ['E', '9437', 'b', 'F', '2681', '1905', '6627', 'K', '9331', '3387', 'h', 'e', 'w', 'r']

5, 9437, 2, 6, 2681, 1905, 6627, 11, 9331, 3387, 8, 5, 23, 18