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: ['b', 'W', 'f', 'p', '7601', '4185', '8589', 'P', '3967', '8657', 'K', '8745', 'K', 'E', '3057', 'H', '4849', 'u', '6027', 'g', '1307', '7925', '1283', 'v', '2987', 'V', '6691', 'O', 'X', '1177', 'l', 'S', 'L', '2443', '4305']

2, 23, 6, 16, 7601, 4185, 8589, 16, 3967, 8657, 11, 8745, 11, 5, 3057, 8, 4849, 21, 6027, 7, 1307, 7925, 1283, 22, 2987, 22, 6691, 15, 24, 1177, 12, 19, 12, 2443, 4305