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: ['E', 'k', 'b', 'm', '6099', 'A', 'A', 'w', '3235', 'w', 'B', '8397', 'A', '5523', '7505', 'X', '2927']

5, 11, 2, 13, 6099, 1, 1, 23, 3235, 23, 2, 8397, 1, 5523, 7505, 24, 2927