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: ['L', 'V', 'N', '1375', '3675', '5119', '7043', '2663', '7155', '9077', '8113', 'I', '4417', 'N', 'E', 'G', '1787', 'b', '25', 'g']

12, 22, 14, 1375, 3675, 5119, 7043, 2663, 7155, 9077, 8113, 9, 4417, 14, 5, 7, 1787, 2, 25, 7