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: ['4605', 'O', 'e', 'z', '1827', 'o', 't', 'M', '3257', '8417', 'L', 'g', '4409', 'h', 'r', '1357', 'V', '8487', 'i', 'z', 'b', 'a', 'P', 'd', '7721', '5365', 's', '2065', '9847', 'n', 'C', '9893', '1935']

4605, 15, 5, 26, 1827, 15, 20, 13, 3257, 8417, 12, 7, 4409, 8, 18, 1357, 22, 8487, 9, 26, 2, 1, 16, 4, 7721, 5365, 19, 2065, 9847, 14, 3, 9893, 1935