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: ['T', 'o', 'P', 'C', '7385', '3533', 'M', 'k', 'A', '9693']

20, 15, 16, 3, 7385, 3533, 13, 11, 1, 9693