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: ['K', '7253', 'D', '4959', '2425', '7343', '4541', '7221', 'd', '7039', '5763', 'B', '1161', 'H', 'W', '589', 'M', 'e', 'G', 'o', '1089', 'G', '291', '5833', '2627', '5797', '3999', 'T', 'R', 'P', '1309', 'o', 'V', '2093', 'T', '9663', 'J', '5819', '9015']

11, 7253, 4, 4959, 2425, 7343, 4541, 7221, 4, 7039, 5763, 2, 1161, 8, 23, 589, 13, 5, 7, 15, 1089, 7, 291, 5833, 2627, 5797, 3999, 20, 18, 16, 1309, 15, 22, 2093, 20, 9663, 10, 5819, 9015