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: ['2825', 'd', 'e', 'Z', '3131', 'X', 'b', 'c', 'h']

2825, 4, 5, 26, 3131, 24, 2, 3, 8