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.

['4543', 'e', '9589', 'h', 'a', '3761', '3917', '5703', 'Y', '2331', 'o', '6267', 'o', '3555', '8543', '7181', '9155', '6607', '9017', 'X']
4543, 5, 9589, 8, 1, 3761, 3917, 5703, 25, 2331, 15, 6267, 15, 3555, 8543, 7181, 9155, 6607, 9017, 24

['D', 'T', 'U', '4023', '7819', 'i', '7791', 'l', 'q', '895', '3025']
4, 20, 21, 4023, 7819, 9, 7791, 12, 17, 895, 3025

['C', '3839', '7329', '1907', 'n', 'g', 'Y', '2257', 'v', 'S', 'C', 'g', '6301', '2721', '8887', 'm', '1861', 'a', '4989', '9977', 'm', 'k', 'h', 'T', '4953', '9177', '1359']

3, 3839, 7329, 1907, 14, 7, 25, 2257, 22, 19, 3, 7, 6301, 2721, 8887, 13, 1861, 1, 4989, 9977, 13, 11, 8, 20, 4953, 9177, 1359