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: ['g', '7115', 'a', 'e', 'N', 'F', 'q', '4685', 'L', '9875', '1419', '3673', 'f', 'f', 'L', 'T', 'p', 'v', '5847', 'W', '5587', '1045', '7039', 'v', 'u']

7, 7115, 1, 5, 14, 6, 17, 4685, 12, 9875, 1419, 3673, 6, 6, 12, 20, 16, 22, 5847, 23, 5587, 1045, 7039, 22, 21