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: ['8955', '1085', '3981', 'f', '9463', '1975', '2683', '1211', 't', '9847', '2631', '8423', 'Z', '4777', '7423', 'C', '8933', '6549', '4845', 'N', 'm', '1641', '8385', '5529', 'w', '1213', 'Y', 'i', '6375']

8955, 1085, 3981, 6, 9463, 1975, 2683, 1211, 20, 9847, 2631, 8423, 26, 4777, 7423, 3, 8933, 6549, 4845, 14, 13, 1641, 8385, 5529, 23, 1213, 25, 9, 6375