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: ['9335', '6315', 'V', 'l', 'k', 'A', '371', 'I', 'p', '609', 'H', 'b', 'n', '8341', 'g', '8495', 'X', 'N', '2009', '5621', 'n', 'o', '3867', '367', '9627', '4071', '9109', '3485', '3833', '7649', '1577']

9335, 6315, 22, 12, 11, 1, 371, 9, 16, 609, 8, 2, 14, 8341, 7, 8495, 24, 14, 2009, 5621, 14, 15, 3867, 367, 9627, 4071, 9109, 3485, 3833, 7649, 1577