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: ['4523', '2955', 'd', '2155', 'O', '8759', '9227', '3775', 'H', '2225', '6653', '597', 'O', '5655', 'i', 'w', '9791', 'z', '5971', '7193', '5097', 'z', '2799', 'j', '1655', '1053', 'R', 'A', 'a', '5711', '1815', '8497', 'V', '8869', '8197', 'T', 'r', '7955', '2985', 'j']

4523, 2955, 4, 2155, 15, 8759, 9227, 3775, 8, 2225, 6653, 597, 15, 5655, 9, 23, 9791, 26, 5971, 7193, 5097, 26, 2799, 10, 1655, 1053, 18, 1, 1, 5711, 1815, 8497, 22, 8869, 8197, 20, 18, 7955, 2985, 10