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: ['9547', '3797', '7303', 'Z', 'i', '4797', '9225', '7785', '6303', 'M', '1591', '3025', '9499', 'W', '8437', '4499', 'k', '2153', '3451', 'E', 's', 'f', 'q', '3433', 'W', 'J']

9547, 3797, 7303, 26, 9, 4797, 9225, 7785, 6303, 13, 1591, 3025, 9499, 23, 8437, 4499, 11, 2153, 3451, 5, 19, 6, 17, 3433, 23, 10