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: ['v', '1573', '4897', '5541', '605', 'v', 'V']

22, 1573, 4897, 5541, 605, 22, 22