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: ['b', '383', 'Z', '1699', 'i', 'l', 'E', 'n', 'K', 'G', '4477', '5089', '2777', 'j', 'O', 'W', 'b', 'E', '5529', '5893', '737']

2, 383, 26, 1699, 9, 12, 5, 14, 11, 7, 4477, 5089, 2777, 10, 15, 23, 2, 5, 5529, 5893, 737