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.

['G', 'O', '8921', 'k', 'T', 'g', '9349', '2977', '143', '2743', '7843']
7, 15, 8921, 11, 20, 7, 9349, 2977, 143, 2743, 7843

['4899', 'h', '9159', 'h', '1229', '6031', 'Y', 'b', '2015', 'c', '5267', '9319', '499', '995', '9219', 'J', 's', 'L', 'Z', '4263', 'a', 'o', 'd', '3995', '9333', 'I', 'm', 'Q', 'w', 'Z', 'n', '425', '4291', '1211', 'n']
4899, 8, 9159, 8, 1229, 6031, 25, 2, 2015, 3, 5267, 9319, 499, 995, 9219, 10, 19, 12, 26, 4263, 1, 15, 4, 3995, 9333, 9, 13, 17, 23, 26, 14, 425, 4291, 1211, 14

['8375', 'g', 'X', '8671', 'k', '6649', 'H', '5581', 'a', 'S', 'K', 'R', 'G', '1119', '1853', 'G', '5659', '6111', 'U', 'j', '8719', '9669', 'h', 'P', '3351', '9143', 'e']

8375, 7, 24, 8671, 11, 6649, 8, 5581, 1, 19, 11, 18, 7, 1119, 1853, 7, 5659, 6111, 21, 10, 8719, 9669, 8, 16, 3351, 9143, 5