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: ['a', '2195', 'P', 'i', 'd', '2023', 'h', 'Q', 'P']

1, 2195, 16, 9, 4, 2023, 8, 17, 16