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: ['2071', '1937', 'e', 'g', '1075', '8201', 'A', '2029', '4267', '8747', 'g', 'v', 'J', '2599', 'y', '7307']

2071, 1937, 5, 7, 1075, 8201, 1, 2029, 4267, 8747, 7, 22, 10, 2599, 25, 7307