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: ['z', '1813', 'N', 's', 'u', 'd', '3925', 'x', 'G', 'h', 'B', 'M', 'j', '5389', '3473', '4101', 'F', '3995', 'r', 'H', '1841', '8865', 'N', '3025', '8387', 'r', 'T', 'e', 'a', 'A']

26, 1813, 14, 19, 21, 4, 3925, 24, 7, 8, 2, 13, 10, 5389, 3473, 4101, 6, 3995, 18, 8, 1841, 8865, 14, 3025, 8387, 18, 20, 5, 1, 1