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: ['f', 'k', '8773', '301', '8665', '525', '7231', '5777', 'i', '9963', '3311', '8325', 'V', '2413', 'O', 'u', '7575', 'T', 'u', 'b', 'X', 'Z', 'o', 'Y', '9129', '8571', '3881', '3083', '4537', '1699', 'I', 'I', 'V', 'N', 'Z', '3157', 'B', '331', 'a', 'A']

6, 11, 8773, 301, 8665, 525, 7231, 5777, 9, 9963, 3311, 8325, 22, 2413, 15, 21, 7575, 20, 21, 2, 24, 26, 15, 25, 9129, 8571, 3881, 3083, 4537, 1699, 9, 9, 22, 14, 26, 3157, 2, 331, 1, 1