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: ['6675', 'K', '4979', '6973', 'f', 'j', '201', '7947', '6199', 'Q', '9195', 'u', '4329', '8693', 'Z', 'R', '6427', '9303', '5379', 'g', 'q', 'J', 'w', 'Z', '6059', 'J', 'u', '5345', 'm', '5477']

6675, 11, 4979, 6973, 6, 10, 201, 7947, 6199, 17, 9195, 21, 4329, 8693, 26, 18, 6427, 9303, 5379, 7, 17, 10, 23, 26, 6059, 10, 21, 5345, 13, 5477