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.

['8949', 'w', 'v', '2765', 'P', 'm', 'V', 't', '2605', '8467', 't', 'K', 'K', '3019', '8255', 'y', '3981', 'l', '2309', '9557', '5339', '4599', 'g', '2805', '4387', '75', '6593', '5365', '3771', '6007', 'F', '5229', '1101', '4091', '8497', 'm', '2085', 'U', '6345']
8949, 23, 22, 2765, 16, 13, 22, 20, 2605, 8467, 20, 11, 11, 3019, 8255, 25, 3981, 12, 2309, 9557, 5339, 4599, 7, 2805, 4387, 75, 6593, 5365, 3771, 6007, 6, 5229, 1101, 4091, 8497, 13, 2085, 21, 6345