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: ['5653', '7085', 'W', '8953', 'Z', 'y', '733', '601', 'N', 'B', 'V', 'H', 'H', '2379', 'U', 'g', 'B', 'e', '5555', '5487', 'Z', '5647', 'O', '319', 'q', '8507']

5653, 7085, 23, 8953, 26, 25, 733, 601, 14, 2, 22, 8, 8, 2379, 21, 7, 2, 5, 5555, 5487, 26, 5647, 15, 319, 17, 8507