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: ['7021', '5307', '7345', 'i', '9897', '2951', '2501', 'K', 'X', '2195']

7021, 5307, 7345, 9, 9897, 2951, 2501, 11, 24, 2195