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: ['i', 'Q', 'G', 'b', 'a', '6093', '4491', 'a', 'o', '7803', '7223', '4431', '913', 'v']

9, 17, 7, 2, 1, 6093, 4491, 1, 15, 7803, 7223, 4431, 913, 22