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: ['9061', 'a', 'f', 'C', 'E', 'G', '3289', 'a', 'm', '3883', 'p', 'k', '5077', 'C', '37', 'Q', '9285', '9357', 'D']

9061, 1, 6, 3, 5, 7, 3289, 1, 13, 3883, 16, 11, 5077, 3, 37, 17, 9285, 9357, 4