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: ['7495', 'i', '8845', '8961', '4851', '6181', '375', 'g', '4723', '9525', '7541', 'p']

7495, 9, 8845, 8961, 4851, 6181, 375, 7, 4723, 9525, 7541, 16