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: ['Y', 'V', '5267', 'O', 'i', '5723', 'E', '6523', '2399', 'l', 'n', 'T', 'r', 'i', '6141', 'n', 'N', 'T', 'S', 'f', 'E', 'W', 'M', '7587', 'V', '217', '5659', 'X', 'J', 'q', '1861', 'o', '319', 'w', 'Z', '3215', '2185', 'c', 'g']

25, 22, 5267, 15, 9, 5723, 5, 6523, 2399, 12, 14, 20, 18, 9, 6141, 14, 14, 20, 19, 6, 5, 23, 13, 7587, 22, 217, 5659, 24, 10, 17, 1861, 15, 319, 23, 26, 3215, 2185, 3, 7